Merge pull request 'v0.11.0' (#50) from release/0.11.0 into main

## [0.11.0] - 2026-05-15

Operator-facing polish release.  All work builds on the v0.10.0 SFM integration foundation — this release is about making the day-to-day workflows (managing locations, cleaning up bad attributions, browsing deployments) faster and less error-prone.

### Added
- **Soft-remove monitoring locations** (`POST /api/projects/{p}/locations/{l}/remove` + `/restore`): mark a location as no longer actively monitored without destroying historical events.  Cascade-closes active unit assignments and cancels pending scheduled actions at the location.  Restored locations rejoin the active list (assignments are NOT auto-reopened — operator creates new ones if resuming).  Project page splits locations into Active and Removed sections; removed cards are greyed out, badged with the removal date + reason, and offer a Restore button.
- **Per-unit deployment Gantt chart** above the existing Deployment Timeline list on every seismograph unit detail page.  Plain-SVG rendering, color per location, today marker (orange dashed line), reduced-opacity bars for closed assignments, blue outlines on metadata-backfilled assignments, dashed blue underlines marking mergeable groups.  Click a bar to scroll the matching list row into view with a flash highlight.
- **Merge consecutive same-location assignments** (`POST /api/projects/{p}/assignments/merge`): operators often end up with several rows representing one continuous deployment (after remove/restore, or metadata-backfill adjacent to a manual record).  Now auto-detected and surfaceable in the timeline header — one click combines them into a single record.  Preserves the earliest record's notes + ingest source, writes an `assignment_merged` audit entry, deletes the others.
- **Delete assignment for mis-clicks** (`DELETE /api/projects/{p}/assignments/{a}`): hard-deletes a bogus assignment row that was never a real deployment.  Trash icon in each row of the location's Deployment History panel.  Refuses the delete if any `MonitoringSession` exists in the assignment's window — those should go through Unassign instead, which preserves audit history.  Writes an `assignment_deleted` UnitHistory row.
- **Drag-to-reorder location cards**: each active card has a six-dot drag handle on the left.  Drag/drop reorders the DOM and persists via `POST /api/projects/{p}/locations/reorder`.  Implementation uses native HTML5 drag-and-drop (no library).  New locations land at the end (`sort_order = max + 1`); removed locations stay sorted by removal date.
- **Three-dot kebab menu on location cards**: replaces the four inline pill buttons (Unassign / Edit / Remove / Delete) with a single ⋮ menu.  Click ⋮ to open; click outside or Escape to close; only one menu open at a time.
- **Event count on vibration location cards**: vibration cards now show "{N} events" sourced from SFM via concurrent fan-out, instead of "Sessions: 0" (sessions don't exist under the watcher-forward pipeline).  Sound locations still show session counts.
- **Project overview location map**: right column of every project's overview replaces the lightly-used Upcoming Actions panel with a Leaflet map.  One pin per active monitoring location (parsed from the `coordinates` field).  Click pin → scrolls + flashes the matching card.  Tooltip on hover.  Locations without coordinates surface as an inline hint below the map.  If the project has pending scheduled actions, a small "{N} upcoming actions →" link appears in the card header that switches to the Schedules tab.

### Changed
- **Backfill location fuzzy matcher is now stricter**: `rapidfuzz.WRatio` was over-confident on location names because their shared boilerplate vocabulary ("Area", "Loc", numbers) inflated scores.  Example false positive that prompted the change: `"Area 2 - Brookville Dam - Loc 2 East"` vs `"Area 1 - Loc 1 - 87 Jenks"` scored 86% via WRatio.  Now uses `token_set_ratio` as the base scorer plus a 0.30 penalty when the two strings have disjoint multi-digit numeric tokens.  Catches the "same project, different address number" case (`"68 Jenks"` vs `"87 Jenks"`) that pure token-set scoring still rated above 0.90.  Project matching keeps WRatio (where its leniency is desirable for typos like `1-80` vs `I-80`).

### Fixed
- **Three separate JSON.stringify quote-collision bugs**: any inline `onclick="...({...} | tojson)"` or `onclick="...${JSON.stringify(x)}..."` where `x` contained any character that JSON quotes (essentially every real-world string) broke the HTML attribute and silently un-bound the click handler.  Surfaced in three places this release; all fixed by switching to `data-*` attributes plus a trampoline function reading from `this.dataset`:
    - **Location Remove button** on the project page
    - **Metadata-backfill typeahead dropdown** (existing project + location pickers)
    - **Project-merge typeahead dropdown** (in the per-project header)
- **Project-merge modal too short to show typeahead options without scrolling**: modal body's `flex-1 overflow-y-auto` collapsed tight; added `min-height: 480px` to the modal container + `min-h-[320px]` to the body so the dropdown always has room.
- **Project location map covered modals**: Leaflet's internal panes carry z-indexes 200–800 by default and the map container didn't establish a stacking context, so those z-indexes leaked into the root and outranked modals' `z-50`.  Fixed by adding `isolation: isolate` to the map container.
- **`delete_assignment` crashed with `AttributeError`**: the safety check queried `MonitoringSession.start_time` but the actual column is `started_at`.  Every DELETE call to `/assignments/{id}` failed with 500 before doing anything.

### Migration Notes
Run on each database before deploying.  Both migrations are idempotent and non-destructive.

```bash
docker exec terra-view-terra-view-1 python3 /app/backend/migrate_add_location_removed.py
docker exec terra-view-terra-view-1 python3 /app/backend/migrate_add_location_sort_order.py
```

Or sweep all migrations at once (safe — already-applied ones no-op):

```bash
for f in backend/migrate_*.py; do
  docker exec terra-view-terra-view-1 python3 "/app/backend/$(basename $f)"
done
```

New columns added this release:
- `monitoring_locations.removed_at` (DATETIME, nullable) — NULL means active
- `monitoring_locations.removal_reason` (TEXT, nullable)
- `monitoring_locations.sort_order` (INTEGER, default 0) — seeded to alphabetical-index per project on first migration

**Deploy order matters**: migrations must run BEFORE the new code is up, otherwise the running app will throw 500s on the unrecognized columns.  Idempotent migrations make this recoverable but it's better avoided — the v0.11.0 deploy on prod hit this exact window after the v0.10.0 release.

---

CHANGELOG.md

@@ -5,6 +5,57 @@ All notable changes to Terra-View will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.11.0] - 2026-05-15
+
+Operator-facing polish release.  All work builds on the v0.10.0 SFM integration foundation — this release is about making the day-to-day workflows (managing locations, cleaning up bad attributions, browsing deployments) faster and less error-prone.
+
+### Added
+- **Soft-remove monitoring locations** (`POST /api/projects/{p}/locations/{l}/remove` + `/restore`): mark a location as no longer actively monitored without destroying historical events.  Cascade-closes active unit assignments and cancels pending scheduled actions at the location.  Restored locations rejoin the active list (assignments are NOT auto-reopened — operator creates new ones if resuming).  Project page splits locations into Active and Removed sections; removed cards are greyed out, badged with the removal date + reason, and offer a Restore button.
+- **Per-unit deployment Gantt chart** above the existing Deployment Timeline list on every seismograph unit detail page.  Plain-SVG rendering, color per location, today marker (orange dashed line), reduced-opacity bars for closed assignments, blue outlines on metadata-backfilled assignments, dashed blue underlines marking mergeable groups.  Click a bar to scroll the matching list row into view with a flash highlight.
+- **Merge consecutive same-location assignments** (`POST /api/projects/{p}/assignments/merge`): operators often end up with several rows representing one continuous deployment (after remove/restore, or metadata-backfill adjacent to a manual record).  Now auto-detected and surfaceable in the timeline header — one click combines them into a single record.  Preserves the earliest record's notes + ingest source, writes an `assignment_merged` audit entry, deletes the others.
+- **Delete assignment for mis-clicks** (`DELETE /api/projects/{p}/assignments/{a}`): hard-deletes a bogus assignment row that was never a real deployment.  Trash icon in each row of the location's Deployment History panel.  Refuses the delete if any `MonitoringSession` exists in the assignment's window — those should go through Unassign instead, which preserves audit history.  Writes an `assignment_deleted` UnitHistory row.
+- **Drag-to-reorder location cards**: each active card has a six-dot drag handle on the left.  Drag/drop reorders the DOM and persists via `POST /api/projects/{p}/locations/reorder`.  Implementation uses native HTML5 drag-and-drop (no library).  New locations land at the end (`sort_order = max + 1`); removed locations stay sorted by removal date.
+- **Three-dot kebab menu on location cards**: replaces the four inline pill buttons (Unassign / Edit / Remove / Delete) with a single ⋮ menu.  Click ⋮ to open; click outside or Escape to close; only one menu open at a time.
+- **Event count on vibration location cards**: vibration cards now show "{N} events" sourced from SFM via concurrent fan-out, instead of "Sessions: 0" (sessions don't exist under the watcher-forward pipeline).  Sound locations still show session counts.
+- **Project overview location map**: right column of every project's overview replaces the lightly-used Upcoming Actions panel with a Leaflet map.  One pin per active monitoring location (parsed from the `coordinates` field).  Click pin → scrolls + flashes the matching card.  Tooltip on hover.  Locations without coordinates surface as an inline hint below the map.  If the project has pending scheduled actions, a small "{N} upcoming actions →" link appears in the card header that switches to the Schedules tab.
+
+### Changed
+- **Backfill location fuzzy matcher is now stricter**: `rapidfuzz.WRatio` was over-confident on location names because their shared boilerplate vocabulary ("Area", "Loc", numbers) inflated scores.  Example false positive that prompted the change: `"Area 2 - Brookville Dam - Loc 2 East"` vs `"Area 1 - Loc 1 - 87 Jenks"` scored 86% via WRatio.  Now uses `token_set_ratio` as the base scorer plus a 0.30 penalty when the two strings have disjoint multi-digit numeric tokens.  Catches the "same project, different address number" case (`"68 Jenks"` vs `"87 Jenks"`) that pure token-set scoring still rated above 0.90.  Project matching keeps WRatio (where its leniency is desirable for typos like `1-80` vs `I-80`).
+
+### Fixed
+- **Three separate JSON.stringify quote-collision bugs**: any inline `onclick="...({...} | tojson)"` or `onclick="...${JSON.stringify(x)}..."` where `x` contained any character that JSON quotes (essentially every real-world string) broke the HTML attribute and silently un-bound the click handler.  Surfaced in three places this release; all fixed by switching to `data-*` attributes plus a trampoline function reading from `this.dataset`:
+    - **Location Remove button** on the project page
+    - **Metadata-backfill typeahead dropdown** (existing project + location pickers)
+    - **Project-merge typeahead dropdown** (in the per-project header)
+- **Project-merge modal too short to show typeahead options without scrolling**: modal body's `flex-1 overflow-y-auto` collapsed tight; added `min-height: 480px` to the modal container + `min-h-[320px]` to the body so the dropdown always has room.
+- **Project location map covered modals**: Leaflet's internal panes carry z-indexes 200–800 by default and the map container didn't establish a stacking context, so those z-indexes leaked into the root and outranked modals' `z-50`.  Fixed by adding `isolation: isolate` to the map container.
+- **`delete_assignment` crashed with `AttributeError`**: the safety check queried `MonitoringSession.start_time` but the actual column is `started_at`.  Every DELETE call to `/assignments/{id}` failed with 500 before doing anything.
+
+### Migration Notes
+Run on each database before deploying.  Both migrations are idempotent and non-destructive.
+
+```bash
+docker exec terra-view-terra-view-1 python3 /app/backend/migrate_add_location_removed.py
+docker exec terra-view-terra-view-1 python3 /app/backend/migrate_add_location_sort_order.py
+```
+
+Or sweep all migrations at once (safe — already-applied ones no-op):
+
+```bash
+for f in backend/migrate_*.py; do
+  docker exec terra-view-terra-view-1 python3 "/app/backend/$(basename $f)"
+done
+```
+
+New columns added this release:
+- `monitoring_locations.removed_at` (DATETIME, nullable) — NULL means active
+- `monitoring_locations.removal_reason` (TEXT, nullable)
+- `monitoring_locations.sort_order` (INTEGER, default 0) — seeded to alphabetical-index per project on first migration
+
+**Deploy order matters**: migrations must run BEFORE the new code is up, otherwise the running app will throw 500s on the unrecognized columns.  Idempotent migrations make this recoverable but it's better avoided — the v0.11.0 deploy on prod hit this exact window after the v0.10.0 release.
+
+---
+
 ## [0.10.0] - 2026-05-14
 
 This release brings terra-view onto the SFM (Seismograph Field Module) event pipeline. Triggered events forwarded by series3-watcher now land in SFM, and terra-view reads from that store as the authoritative source for vibration data. The watcher heartbeat is preserved as a transparent fallback signal.

README.md

@@ -1,4 +1,4 @@
-# Terra-View v0.10.0
+# Terra-View v0.11.0
 Backend API and HTMX-powered web interface for managing a mixed fleet of seismographs and field modems. Track deployments, monitor health in real time, merge roster intent with incoming telemetry, and control your fleet through a unified database and dashboard.
 
 ## Features
@@ -496,6 +496,19 @@ docker compose down -v
 
 ## Release Highlights
 
+### v0.11.0 — 2026-05-15
+- **Soft-Remove Monitoring Locations**: Mark a location as no longer actively monitored without destroying history. Closes active unit assignments and cancels pending scheduled actions; historical events stay attributed. Restore brings it back. Surfaces as a Removed Locations collapsed section on the project page.
+- **Per-Unit Deployment Gantt**: Visual timeline above the deployment history list on each unit detail page. Color-coded bars per location, today marker, mergeable-group dashed underlines, click a bar to scroll its detail row into view.
+- **Merge Consecutive Deployments**: Auto-detects runs of same-location assignments within a 7-day gap and offers a one-click "Merge into one" button. Preserves notes, ingest source, and writes an `assignment_merged` audit entry.
+- **Delete Assignment for Mis-Clicks**: Trash icon on each row of the location's Deployment History panel. Hard-deletes the assignment with a safety check that refuses if real MonitoringSessions sit inside the window (those should go through Unassign instead).
+- **Drag-to-Reorder Location Cards**: Six-dot drag handle on each card; drop order persists via a new `/locations/reorder` endpoint. Removed locations stay sorted by removal date (their order is historical).
+- **Three-Dot Kebab Menu**: Replaces the inline Unassign / Edit / Remove / Delete pill row with a single ⋮ menu. Much cleaner card layout, especially for projects with many locations.
+- **Event Count on Vibration Cards**: Vibration locations now show "{N} events" instead of "Sessions: 0" (sessions don't exist under the watcher-forward pipeline). Sound locations are unchanged.
+- **Project Location Map**: Right column of the project overview is now a Leaflet map with a pin per location. Click pin → scrolls + flashes the matching card. Replaces the lightly-used Upcoming Actions panel (still discoverable via a link to the Schedules tab when actions exist).
+- **Stricter Location Fuzzy Matching**: Metadata-backfill no longer suggests obviously-wrong matches. WRatio was over-confident on location names ("Area 2 - Brookville Dam - Loc 2" vs "Area 1 - Loc 1 - 87 Jenks" used to score 86%); now uses `token_set_ratio` + a multi-digit penalty so disjoint address numbers correctly demote the score.
+- **Fixed: Multiple typeahead dropdowns weren't clickable**: Same JSON.stringify quote-collision bug surfaced in three places (location Remove button, backfill typeahead, project-merge dropdown). All three fixed by switching to `data-*` attributes + trampoline functions.
+- **Fixed: Merge-project modal had to be scrolled to see options**: Modal body's `flex-1 overflow-y-auto` collapsed too tight; added `min-height` so the dropdown has room to render below the input.
+
 ### v0.10.0 — 2026-05-14
 - **SFM Integration**: terra-view now consumes events from the SFM (Seismograph Field Module) backend in real time, with a fleet-wide events page at `/sfm`, per-unit attribution against project assignment windows, and a project-level vibration roll-up that uses SFM data as the single source of truth.
 - **SFM-Primary Seismograph Status**: Deployed seismograph status (OK/Pending/Missing) now flows from SFM event forwards first; the watcher heartbeat stays as a transparent backup. Each unit's active table row shows a small `SFM` or `HB` badge so operators can see at a glance which signal is currently driving the status.
@@ -612,9 +625,11 @@ MIT
 
 ## Version
 
-**Current: 0.10.0** — SFM integration, SFM-primary seismograph status, dashboard rework, sortable events tables, event detail modal, /admin/sfm + /admin/slmm diagnostic pages, Tools workflow hub (2026-05-14)
+**Current: 0.11.0** — Soft-remove locations, per-unit Gantt, merge/delete assignments, drag-to-reorder, three-dot kebab menu, event count on vibration cards, project location map, stricter backfill fuzzy match, modal/typeahead bug fixes (2026-05-15)
 
-Previous: 0.9.4 — Modular project types, deleted project management, swap modal search, roster auto-refresh fix (2026-04-06)
+Previous: 0.10.0 — SFM integration, SFM-primary seismograph status, dashboard rework, sortable events tables, event detail modal, /admin/sfm + /admin/slmm diagnostic pages, Tools workflow hub (2026-05-14)
+
+0.9.4 — Modular project types, deleted project management, swap modal search, roster auto-refresh fix (2026-04-06)
 
 0.9.3 — Monitoring session detail page, configurable period windows, vibration project redesign, modem assignment on locations (2026-03-28)
 

backend/main.py

@@ -30,7 +30,7 @@ Base.metadata.create_all(bind=engine)
 ENVIRONMENT = os.getenv("ENVIRONMENT", "production")
 
 # Initialize FastAPI app
-VERSION = "0.10.0"
+VERSION = "0.11.0"
 if ENVIRONMENT == "development":
     _build = os.getenv("BUILD_NUMBER", "0")
     if _build and _build != "0":

backend/migrate_add_location_sort_order.py

@@ -0,0 +1,76 @@
+"""
+Migration: add `sort_order` column to `monitoring_locations` and seed
+existing rows.
+
+Lets operators reorder location cards via drag-and-drop on the project
+detail page.  Lower sort_order renders first; ties fall back to name.
+
+Seed strategy: for each existing project, assign sort_order = 0, 1, 2, …
+to its locations in their current alphabetical-by-name order.  After
+this migration, the visible card order on every existing project will
+be unchanged.
+
+Idempotent — safe to re-run.  Non-destructive — adds only.
+
+Run with:
+  docker exec terra-view-terra-view-1 python3 /app/backend/migrate_add_location_sort_order.py
+"""
+
+import os
+import sqlite3
+
+DB_PATH = "./data/seismo_fleet.db"
+
+
+def _has_column(cur: sqlite3.Cursor, table: str, column: str) -> bool:
+    cur.execute(f"PRAGMA table_info({table})")
+    return any(row[1] == column for row in cur.fetchall())
+
+
+def migrate_database() -> None:
+    if not os.path.exists(DB_PATH):
+        print(f"Database not found at {DB_PATH}")
+        return
+
+    conn = sqlite3.connect(DB_PATH)
+    cur  = conn.cursor()
+
+    added_column = False
+    if not _has_column(cur, "monitoring_locations", "sort_order"):
+        cur.execute("ALTER TABLE monitoring_locations ADD COLUMN sort_order INTEGER DEFAULT 0")
+        added_column = True
+        print("  Added column: monitoring_locations.sort_order")
+
+    # Seed: for each project, set sort_order to its alphabetical index.
+    # Re-runs are harmless — operator-edited orderings can be re-seeded by
+    # passing FORCE_RESEED=1, but the default behavior leaves existing
+    # nonzero sort_order values alone so we don't clobber user choices.
+    force_reseed = os.environ.get("FORCE_RESEED") == "1"
+    if added_column or force_reseed:
+        cur.execute("SELECT DISTINCT project_id FROM monitoring_locations")
+        projects = [r[0] for r in cur.fetchall()]
+        seeded = 0
+        for project_id in projects:
+            cur.execute(
+                "SELECT id FROM monitoring_locations WHERE project_id = ? ORDER BY name",
+                (project_id,),
+            )
+            for idx, (loc_id,) in enumerate(cur.fetchall()):
+                cur.execute(
+                    "UPDATE monitoring_locations SET sort_order = ? WHERE id = ?",
+                    (idx, loc_id),
+                )
+                seeded += 1
+        print(f"  Seeded sort_order for {seeded} location(s) across {len(projects)} project(s).")
+    else:
+        print("  monitoring_locations.sort_order already present — leaving existing values alone.")
+        print("  (Set FORCE_RESEED=1 to re-seed by alphabetical order.)")
+
+    conn.commit()
+    conn.close()
+
+
+if __name__ == "__main__":
+    print("Running migration: add sort_order to monitoring_locations")
+    migrate_database()
+    print("Done.")

backend/models.py

@@ -243,6 +243,12 @@ class MonitoringLocation(Base):
     removed_at     = Column(DateTime, nullable=True)
     removal_reason = Column(Text, nullable=True)
 
+    # Display order within the project's location list.  Operators can
+    # drag-and-drop to reorder cards on the project detail page.  Lower
+    # values render first; ties fall back to name (alphabetical).  Seeded
+    # to alphabetical-index on migration; new locations get max+1.
+    sort_order = Column(Integer, default=0, nullable=False)
+
     created_at = Column(DateTime, default=datetime.utcnow)
     updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 

backend/routers/metadata_backfill.py

@@ -376,7 +376,11 @@ def locations_search(
         if q_norm in l_norm:
             scored.append((l, 1.0))
             continue
-        score = svc.similarity(q_norm, l_norm)
+        # Use the location-specific scorer (token_set_ratio + multi-digit
+        # penalty) instead of WRatio — same reason as the cluster-match
+        # path: location names share too much boilerplate vocabulary for
+        # WRatio to discriminate reliably.
+        score = svc.location_similarity(q_norm, l_norm)
         if score >= 0.50:
             scored.append((l, score))
 

backend/routers/project_locations.py

@@ -151,7 +151,26 @@ async def get_project_locations(
     if location_type:
         query = query.filter_by(location_type=location_type)
 
-    locations = query.order_by(MonitoringLocation.name).all()
+    # Order by operator-set sort_order, then name as a stable tie-breaker.
+    locations = query.order_by(MonitoringLocation.sort_order, MonitoringLocation.name).all()
+
+    # For vibration locations, fan out event counts via SFM concurrently
+    # so the card layout can show "{N} events" instead of "Sessions: 0"
+    # (sessions don't really exist for the watcher-forward pipeline).
+    # Sound locations skip this and keep showing session counts.
+    event_counts: dict[str, int] = {}
+    vibration_locations = [l for l in locations if l.location_type == "vibration"]
+    if vibration_locations:
+        import asyncio
+        from backend.services.sfm_events import events_for_location
+        results = await asyncio.gather(
+            *(events_for_location(db, l.id, limit=1) for l in vibration_locations),
+            return_exceptions=True,
+        )
+        for loc, res in zip(vibration_locations, results):
+            if isinstance(res, Exception):
+                continue   # leave event_counts[loc.id] unset → template falls back
+            event_counts[loc.id] = (res.get("stats") or {}).get("event_count", 0) or 0
 
     # Enrich with assignment info, splitting active vs removed.
     active_data:  list = []
@@ -183,6 +202,8 @@ async def get_project_locations(
             "assigned_unit": assigned_unit,
             "session_count": session_count,
         }
+        if location.id in event_counts:
+            item["event_count"] = event_counts[location.id]
         if location.removed_at is None:
             active_data.append(item)
         else:
@@ -224,7 +245,7 @@ async def get_project_locations_json(
     if not include_removed:
         query = query.filter(MonitoringLocation.removed_at == None)   # noqa: E711
 
-    locations = query.order_by(MonitoringLocation.name).all()
+    locations = query.order_by(MonitoringLocation.sort_order, MonitoringLocation.name).all()
 
     return [
         {
@@ -256,6 +277,13 @@ async def create_location(
 
     form_data = await request.form()
 
+    # Compute next sort_order so new locations land at the END of the
+    # project's list rather than getting interleaved alphabetically.
+    from sqlalchemy import func
+    max_sort = db.query(func.max(MonitoringLocation.sort_order))\
+        .filter_by(project_id=project_id).scalar()
+    next_sort_order = (max_sort or 0) + 1 if max_sort is not None else 0
+
     location = MonitoringLocation(
         id=str(uuid.uuid4()),
         project_id=project_id,
@@ -265,6 +293,7 @@ async def create_location(
         coordinates=form_data.get("coordinates"),
         address=form_data.get("address"),
         location_metadata=form_data.get("location_metadata"),  # JSON string
+        sort_order=next_sort_order,
     )
 
     db.add(location)
@@ -356,6 +385,57 @@ async def delete_location(
     return {"success": True, "message": "Location deleted successfully"}
 
 
+@router.post("/locations/reorder")
+async def reorder_locations(
+    project_id: str,
+    request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Persist a new sort order for a project's monitoring locations.
+
+    Body JSON: { "location_ids": [uuid, uuid, ...] }
+        The list MUST contain location ids in the desired display order.
+        Locations not included in the list keep their current sort_order
+        (useful for the "active locations only — leave removed alone"
+        drag-and-drop UX).
+
+    Updates `sort_order` to the index of each id in the list.  Ties
+    between included and excluded locations fall back to the existing
+    sort_order.
+    """
+    try:
+        payload = await request.json()
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid JSON body")
+
+    ids = payload.get("location_ids") or []
+    if not isinstance(ids, list) or len(ids) == 0:
+        raise HTTPException(status_code=400, detail="location_ids must be a non-empty list")
+
+    # Fetch only the locations being reordered and validate ownership.
+    locations = db.query(MonitoringLocation).filter(
+        MonitoringLocation.project_id == project_id,
+        MonitoringLocation.id.in_(ids),
+    ).all()
+
+    found_ids = {l.id for l in locations}
+    missing = [i for i in ids if i not in found_ids]
+    if missing:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Some locations not found in this project: {missing[:3]}…",
+        )
+
+    # Apply 0-indexed sort_order matching the operator's chosen order.
+    by_id = {l.id: l for l in locations}
+    for idx, loc_id in enumerate(ids):
+        by_id[loc_id].sort_order = idx
+
+    db.commit()
+    return {"success": True, "reordered": len(ids)}
+
+
 @router.post("/locations/{location_id}/remove")
 async def remove_location(
     project_id: str,

backend/services/metadata_backfill.py

@@ -162,6 +162,11 @@ def similarity(a: str, b: str) -> float:
     too short to fuzzy-match safely (see _MIN_FUZZY_LEN comment) AND the
     strings don't exact-match.  This guardrails the 'one common word
     inside a longer phrase' false positive.
+
+    USE FOR: project names (where typos like '1-80' vs 'I-80' should
+    still match).  For location names use `location_similarity()` —
+    WRatio is too lenient on the shared boilerplate vocabulary in
+    location strings ('Area', 'Loc', 'Bridge', 'Dam', etc.).
     """
     if not a or not b:
         return 0.0
@@ -172,6 +177,50 @@ def similarity(a: str, b: str) -> float:
     return rapidfuzz.fuzz.WRatio(a, b) / 100.0
 
 
+# Multi-digit penalty applied when two location names have completely
+# disjoint multi-digit numeric tokens (e.g. "87 Jenks" vs "68 Jenks").
+# Single-digit numbers ("Loc 1", "Area 2") are often shared coincidentally,
+# but address-style multi-digit numbers are strong identifiers — if they
+# differ, the locations are usually different physical places.
+_LOCATION_DIGIT_MISMATCH_PENALTY = 0.30
+
+
+def location_similarity(a: str, b: str) -> float:
+    """Stricter similarity score for location-name matching.
+
+    Location names share so much boilerplate vocabulary ('Area', 'Loc',
+    'Bridge', 'Dam') that rapidfuzz.WRatio inflates obvious mismatches.
+    Example: 'Area 2 - Brookville Dam - Loc 2 East' vs 'Area 1 - Loc 1 -
+    87 Jenks' scores 85.5 via WRatio despite being unrelated locations.
+
+    This scorer uses `token_set_ratio` as the base (sensitive to actual
+    word overlap, not just substring containment).  It then applies a
+    multi-digit penalty: if both strings contain 2+-digit numbers and
+    none overlap, subtract 0.30.  Catches the "same project, different
+    address-style identifier" case ('87 Jenks' vs '68 Jenks') that pure
+    token-set scoring still rates above 0.90.
+
+    Single-digit numbers ('Loc 1', 'Area 2') are excluded from the
+    penalty because they're often shared boilerplate ("Loc 1" in every
+    project) rather than discriminating identifiers.
+    """
+    if not a or not b:
+        return 0.0
+    if a == b:
+        return 1.0
+    if min(len(a), len(b)) < _MIN_FUZZY_LEN:
+        return 0.0
+
+    base = rapidfuzz.fuzz.token_set_ratio(a, b) / 100.0
+
+    multidigits_a = set(re.findall(r"\d{2,}", a))
+    multidigits_b = set(re.findall(r"\d{2,}", b))
+    if multidigits_a and multidigits_b and not (multidigits_a & multidigits_b):
+        base = max(0.0, base - _LOCATION_DIGIT_MISMATCH_PENALTY)
+
+    return base
+
+
 # ── Cluster + Suggestion dataclasses ───────────────────────────────────────────
 
 
@@ -572,15 +621,24 @@ async def _scan_clusters(
 def _find_best_match(
     candidate_norm: str,
     candidates: list[tuple[str, str]],   # (id, normalised_name)
+    *,
+    kind: str = "project",               # "project" | "location"
 ) -> tuple[Optional[str], Optional[float], str]:
     """Return (best_id, best_score, classification).
 
     classification ∈ {"exact", "fuzzy", "ambiguous", "no_match"}
+
+    The `kind` parameter selects the scorer.  Project matching uses
+    rapidfuzz.WRatio (lenient — catches typos like '1-80' vs 'I-80').
+    Location matching uses `location_similarity` (stricter — catches
+    boilerplate-shared-but-actually-different strings like 'Loc 2 - 68
+    Jenks' vs 'Loc 1 - 87 Jenks').
     """
     if not candidate_norm or not candidates:
         return None, None, "no_match"
 
-    scored = [(cid, similarity(candidate_norm, cnorm)) for cid, cnorm in candidates]
+    scorer = location_similarity if kind == "location" else similarity
+    scored = [(cid, scorer(candidate_norm, cnorm)) for cid, cnorm in candidates]
     scored.sort(key=lambda x: x[1], reverse=True)
     best_id, best_score = scored[0]
 
@@ -725,7 +783,7 @@ def _build_suggestion(db: Session, cluster: Cluster) -> Suggestion:
         )
         location_candidates = [(l.id, _normalise(l.name)) for l in location_candidates_objs]
         if cluster.location_norm:
-            loc_id, loc_score, loc_match = _find_best_match(cluster.location_norm, location_candidates)
+            loc_id, loc_score, loc_match = _find_best_match(cluster.location_norm, location_candidates, kind="location")
         else:
             loc_id, loc_score, loc_match = None, None, "create_new"
     else:

templates/partials/projects/location_list.html

@@ -1,7 +1,18 @@
-<!-- Project Locations List — split into Active + Removed sections.
-     Active locations get the full card with Assign/Edit/Delete/Remove
-     actions.  Removed locations get a greyed-out card with a
-     Removed-on date, optional reason, and a Restore button. -->
+<!-- Project Locations List — Active + Removed sections.
+
+  Card layout:
+    [drag handle] [location info]                          [unit pill] [⋮ menu]
+                  (name link, description, address, sessions/events, coords)
+
+  Active cards are draggable to reorder.  Drop reorders the DOM
+  immediately and posts the new order to /api/projects/{p}/locations/reorder.
+
+  Removed cards are NOT reorderable (their order is historical) but
+  show a Restore button.
+
+  The three-dot menu replaces the inline Unassign/Edit/Remove/Delete
+  pill buttons.  Click ⋮ to open; click outside closes.
+-->
 
 {% if not active_locations and not removed_locations %}
     <div class="text-center py-8 text-gray-500 dark:text-gray-400">
@@ -12,19 +23,36 @@
     </div>
 {% else %}
 
-{# ─── Active locations ─── #}
+{# ─── Active locations (draggable) ─── #}
 {% if active_locations %}
-    <div class="space-y-3">
+    <div class="space-y-3" id="active-locations-list" data-project-id="{{ project.id }}">
         {% for item in active_locations %}
-            <div class="border border-gray-200 dark:border-gray-700 rounded-lg p-4 hover:border-seismo-orange transition-colors">
+            <div class="border border-gray-200 dark:border-gray-700 rounded-lg p-4 hover:border-seismo-orange transition-colors location-card"
+                 draggable="true"
+                 data-location-id="{{ item.location.id }}"
+                 data-location-type="{{ item.location.location_type or 'sound' }}"
+                 data-location-name="{{ item.location.name | e }}"
+                 data-coordinates="{{ item.location.coordinates or '' }}"
+                 ondragstart="onLocationDragStart(event)"
+                 ondragover="onLocationDragOver(event)"
+                 ondragleave="onLocationDragLeave(event)"
+                 ondrop="onLocationDrop(event)"
+                 ondragend="onLocationDragEnd(event)">
+
                 <div class="flex items-start justify-between gap-3">
+                    <!-- Drag handle + info -->
+                    <div class="flex items-start gap-3 min-w-0 flex-1">
+                        <div class="shrink-0 pt-0.5 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300 cursor-grab active:cursor-grabbing select-none"
+                             title="Drag to reorder">
+                            <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+                                <path d="M7 4a1 1 0 110 2 1 1 0 010-2zm6 0a1 1 0 110 2 1 1 0 010-2zM7 9a1 1 0 110 2 1 1 0 010-2zm6 0a1 1 0 110 2 1 1 0 010-2zM7 14a1 1 0 110 2 1 1 0 010-2zm6 0a1 1 0 110 2 1 1 0 010-2z"/>
+                            </svg>
+                        </div>
                         <div class="min-w-0 flex-1">
-                        <div class="flex items-center gap-2">
                             <a href="/projects/{{ project.id }}/nrl/{{ item.location.id }}"
                                class="font-semibold text-gray-900 dark:text-white hover:text-seismo-orange truncate">
                                 {{ item.location.name }}
                             </a>
-                        </div>
                             {% if item.location.description %}
                                 <p class="text-xs text-gray-500 dark:text-gray-400 mt-1">{{ item.location.description }}</p>
                             {% endif %}
@@ -34,47 +62,71 @@
                             {% if item.location.coordinates %}
                                 <p class="text-xs text-gray-500 dark:text-gray-400 mt-1">{{ item.location.coordinates }}</p>
                             {% endif %}
+
+                            <div class="mt-3 text-xs text-gray-500 dark:text-gray-400 flex flex-wrap gap-4">
+                                {% if item.event_count is defined and item.location.location_type == 'vibration' %}
+                                    <span><strong class="text-gray-700 dark:text-gray-300">{{ "{:,}".format(item.event_count) }}</strong> event{{ '' if item.event_count == 1 else 's' }}</span>
+                                {% else %}
+                                    <span>Sessions: {{ item.session_count }}</span>
+                                {% endif %}
+                                {% if item.assignment and item.assigned_unit %}
+                                    <span>Assigned: <a href="/unit/{{ item.assigned_unit.id }}" class="text-seismo-orange hover:text-seismo-navy font-mono">{{ item.assigned_unit.id }}</a></span>
+                                {% else %}
+                                    <span class="italic text-gray-400 dark:text-gray-500">No active assignment</span>
+                                {% endif %}
+                            </div>
+                        </div>
                     </div>
 
-                    <div class="flex items-center gap-2">
-                        {% if item.assignment %}
-                            <button onclick="unassignUnit('{{ item.assignment.id }}')"
-                                    class="text-xs px-3 py-1 rounded-full bg-amber-100 text-amber-800 dark:bg-amber-900/30 dark:text-amber-300">
-                                Unassign
-                            </button>
-                        {% else %}
+                    <!-- Right column: small assign/unassign pill + 3-dot menu -->
+                    <div class="flex items-center gap-2 shrink-0">
+                        {% if not item.assignment %}
+                            <!-- Primary action: visible because the unassigned card
+                                 is most likely getting clicked on right after creation -->
                             <button onclick="openAssignModal('{{ item.location.id }}', '{{ item.location.location_type or 'sound' }}')"
                                     class="text-xs px-3 py-1 rounded-full bg-seismo-orange text-white hover:bg-seismo-navy">
                                 Assign
                             </button>
                         {% endif %}
+
+                        <!-- Three-dot kebab menu -->
+                        <div class="relative inline-block location-menu-wrapper">
+                            <button onclick="toggleLocationMenu(event, this)"
+                                    class="p-1.5 rounded-full text-gray-400 hover:text-gray-700 dark:hover:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700"
+                                    title="More actions">
+                                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+                                    <path d="M10 6a2 2 0 110-4 2 2 0 010 4zm0 6a2 2 0 110-4 2 2 0 010 4zm0 6a2 2 0 110-4 2 2 0 010 4z"/>
+                                </svg>
+                            </button>
+
+                            <div class="location-menu hidden absolute right-0 mt-1 w-40 z-30 bg-white dark:bg-slate-800 border border-gray-200 dark:border-gray-700 rounded-lg shadow-lg py-1">
+                                {% if item.assignment %}
+                                    <button onclick="unassignUnit('{{ item.assignment.id }}'); closeAllLocationMenus()"
+                                            class="w-full text-left px-3 py-1.5 text-sm text-gray-700 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-gray-700">
+                                        Unassign
+                                    </button>
+                                {% endif %}
                                 <button data-location='{{ {"id": item.location.id, "name": item.location.name, "description": item.location.description, "address": item.location.address, "coordinates": item.location.coordinates, "location_type": item.location.location_type} | tojson }}'
-                                onclick="openEditLocationModal(this)"
-                                class="text-xs px-3 py-1 rounded-full bg-gray-100 text-gray-700 dark:bg-gray-800 dark:text-gray-300">
+                                        onclick="openEditLocationModal(this); closeAllLocationMenus()"
+                                        class="w-full text-left px-3 py-1.5 text-sm text-gray-700 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-gray-700">
                                     Edit
                                 </button>
                                 <button data-loc-id="{{ item.location.id }}"
                                         data-loc-name="{{ item.location.name | e }}"
-                                onclick="openRemoveLocationModal(this.dataset.locId, this.dataset.locName)"
-                                class="text-xs px-3 py-1 rounded-full bg-amber-50 text-amber-700 dark:bg-amber-900/20 dark:text-amber-300 hover:bg-amber-100"
-                                title="Mark as no longer actively monitored — preserves historical events">
+                                        onclick="openRemoveLocationModal(this.dataset.locId, this.dataset.locName); closeAllLocationMenus()"
+                                        class="w-full text-left px-3 py-1.5 text-sm text-amber-700 dark:text-amber-300 hover:bg-amber-50 dark:hover:bg-amber-900/20"
+                                        title="Mark as no longer monitored — preserves events">
                                     Remove
                                 </button>
-                        <button onclick="deleteLocation('{{ item.location.id }}')"
-                                class="text-xs px-3 py-1 rounded-full bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-300"
-                                title="Permanently delete — only available if there's no history">
+                                <div class="border-t border-gray-100 dark:border-gray-700 my-1"></div>
+                                <button onclick="deleteLocation('{{ item.location.id }}'); closeAllLocationMenus()"
+                                        class="w-full text-left px-3 py-1.5 text-sm text-red-600 dark:text-red-400 hover:bg-red-50 dark:hover:bg-red-900/20"
+                                        title="Permanently delete — only allowed if no history">
                                     Delete
                                 </button>
                             </div>
                         </div>
-
-                <div class="mt-3 text-xs text-gray-500 dark:text-gray-400 flex flex-wrap gap-4">
-                    <span>Sessions: {{ item.session_count }}</span>
-                    {% if item.assignment and item.assigned_unit %}
-                        <span>Assigned: {{ item.assigned_unit.id }}</span>
-                    {% else %}
-                        <span>No active assignment</span>
-                    {% endif %}
+                    </div>
                 </div>
             </div>
         {% endfor %}
@@ -135,7 +187,11 @@
                     </div>
 
                     <div class="mt-3 text-xs text-gray-500 dark:text-gray-400 flex flex-wrap gap-4">
+                        {% if item.event_count is defined and item.location.location_type == 'vibration' %}
+                            <span>{{ "{:,}".format(item.event_count) }} historical event{{ '' if item.event_count == 1 else 's' }}</span>
+                        {% else %}
                             <span>Historical sessions: {{ item.session_count }}</span>
+                        {% endif %}
                     </div>
                 </div>
             {% endfor %}
@@ -144,3 +200,103 @@
 {% endif %}
 
 {% endif %}
+
+<!-- Drag-and-drop + menu handlers, scoped to this partial (re-defined
+     on every htmx swap, which is harmless — function declarations
+     overwrite). -->
+<script>
+let _dragSrcCard = null;
+
+function onLocationDragStart(e) {
+    _dragSrcCard = e.currentTarget;
+    e.dataTransfer.effectAllowed = 'move';
+    // Required for Firefox to start the drag.
+    e.dataTransfer.setData('text/plain', _dragSrcCard.dataset.locationId);
+    e.currentTarget.classList.add('opacity-40');
+}
+
+function onLocationDragOver(e) {
+    if (!_dragSrcCard || e.currentTarget === _dragSrcCard) return;
+    e.preventDefault();
+    e.dataTransfer.dropEffect = 'move';
+    e.currentTarget.classList.add('ring-2', 'ring-seismo-orange');
+}
+
+function onLocationDragLeave(e) {
+    e.currentTarget.classList.remove('ring-2', 'ring-seismo-orange');
+}
+
+function onLocationDrop(e) {
+    e.preventDefault();
+    e.currentTarget.classList.remove('ring-2', 'ring-seismo-orange');
+    if (!_dragSrcCard || e.currentTarget === _dragSrcCard) return;
+
+    const list = document.getElementById('active-locations-list');
+    if (!list) return;
+
+    // Drop AFTER the target by default; if mouse is in top half, drop BEFORE.
+    const rect = e.currentTarget.getBoundingClientRect();
+    const dropBefore = (e.clientY - rect.top) < rect.height / 2;
+    if (dropBefore) {
+        list.insertBefore(_dragSrcCard, e.currentTarget);
+    } else {
+        list.insertBefore(_dragSrcCard, e.currentTarget.nextSibling);
+    }
+
+    _persistLocationOrder(list);
+}
+
+function onLocationDragEnd(e) {
+    e.currentTarget.classList.remove('opacity-40');
+    document.querySelectorAll('.location-card').forEach(c => {
+        c.classList.remove('ring-2', 'ring-seismo-orange');
+    });
+    _dragSrcCard = null;
+}
+
+async function _persistLocationOrder(list) {
+    const projectId = list.dataset.projectId;
+    const ids = Array.from(list.querySelectorAll('.location-card'))
+        .map(c => c.dataset.locationId);
+    try {
+        const r = await fetch(`/api/projects/${projectId}/locations/reorder`, {
+            method:  'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body:    JSON.stringify({ location_ids: ids }),
+        });
+        if (!r.ok) {
+            const err = await r.json().catch(() => ({ detail: 'HTTP ' + r.status }));
+            throw new Error(err.detail || 'reorder failed');
+        }
+    } catch (err) {
+        console.error('Failed to save new order:', err);
+        if (typeof showToast === 'function') showToast('Failed to save new order: ' + err.message, 'error');
+    }
+}
+
+// ── Three-dot menu ─────────────────────────────────────────────────
+function toggleLocationMenu(e, btn) {
+    e.stopPropagation();
+    const menu = btn.parentElement.querySelector('.location-menu');
+    const wasOpen = !menu.classList.contains('hidden');
+    closeAllLocationMenus();
+    if (!wasOpen) {
+        menu.classList.remove('hidden');
+    }
+}
+
+function closeAllLocationMenus() {
+    document.querySelectorAll('.location-menu').forEach(m => m.classList.add('hidden'));
+}
+
+// Close menus on outside click (only register once globally).
+if (!window._locationMenuOutsideClickRegistered) {
+    document.addEventListener('click', (e) => {
+        if (!e.target.closest('.location-menu-wrapper')) closeAllLocationMenus();
+    });
+    document.addEventListener('keydown', (e) => {
+        if (e.key === 'Escape') closeAllLocationMenus();
+    });
+    window._locationMenuOutsideClickRegistered = true;
+}
+</script>

templates/partials/projects/project_dashboard.html

@@ -78,22 +78,128 @@
         </div>
     </div>
 
-    <div class="bg-white dark:bg-slate-800 rounded-xl shadow-lg p-6">
-        <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Upcoming Actions</h3>
+    <!-- Location Map — replaces the old Upcoming Actions panel for the
+         overview.  Operators get a quick visual of where their locations
+         sit relative to each other.  Pins clickable → scroll to + flash
+         the matching card.  Locations without coordinates land in a
+         "missing coords" hint below the map.
+         For projects with scheduled monitoring activity, the full
+         Upcoming Actions list is still available on the Schedules tab. -->
+    <div class="bg-white dark:bg-slate-800 rounded-xl shadow-lg p-4">
+        <div class="flex items-center justify-between mb-3">
+            <h3 class="text-lg font-semibold text-gray-900 dark:text-white">Location Map</h3>
             {% if upcoming_actions %}
-            <div class="space-y-3">
-                {% for action in upcoming_actions %}
-                    <div class="border border-gray-200 dark:border-gray-700 rounded-lg p-3">
-                        <p class="font-medium text-gray-900 dark:text-white">{{ action.action_type }}</p>
-                        <p class="text-xs text-gray-500 dark:text-gray-400 mt-1">{{ action.scheduled_time|local_datetime }} {{ timezone_abbr() }}</p>
-                        {% if action.description %}
-                            <p class="text-xs text-gray-500 dark:text-gray-400 mt-1">{{ action.description }}</p>
+                <a href="javascript:void(0)" onclick="switchTab('schedules')"
+                   class="text-xs text-seismo-orange hover:text-seismo-navy whitespace-nowrap">
+                    {{ upcoming_actions | length }} upcoming action{{ '' if upcoming_actions | length == 1 else 's' }} →
+                </a>
             {% endif %}
         </div>
+        <!-- `isolation: isolate` forces a new stacking context so Leaflet's
+             internal z-indexes (panes at 200-700, controls at 800) stay
+             contained inside this div instead of leaking into the root
+             stacking context and rendering over modals (which have z-50). -->
+        <div id="project-location-map" class="w-full rounded-lg border border-gray-200 dark:border-gray-700"
+             style="height: 320px; background: rgba(0,0,0,0.05); isolation: isolate;"></div>
+        <div id="project-location-map-empty" class="hidden text-xs text-gray-500 dark:text-gray-400 mt-2 italic text-center">
+            No location coordinates set.  Edit a location and add a <code class="font-mono">lat,lon</code> pair to see it here.
+        </div>
+        <div id="project-location-map-missing" class="hidden text-xs text-gray-500 dark:text-gray-400 mt-2"></div>
+    </div>
+</div>
+
+<script>
+(function () {
+    // Build location data from server-side render.  Skip removed
+    // locations (their pins would clutter the active operations view)
+    // and skip ones without parseable coordinates.
+    const locationsRaw = [
+        {% for loc in locations %}
+        {% if not loc.removed_at %}
+        {
+            id:    {{ loc.id | tojson }},
+            name:  {{ loc.name | tojson }},
+            coords: {{ loc.coordinates | tojson if loc.coordinates else 'null' }},
+        }{% if not loop.last %},{% endif %}
+        {% endif %}
         {% endfor %}
-            </div>
-        {% else %}
-            <p class="text-sm text-gray-500 dark:text-gray-400">No scheduled actions.</p>
-        {% endif %}
-    </div>
-</div>
+    ];
+
+    function parseCoords(s) {
+        if (!s) return null;
+        const parts = String(s).split(',').map(x => parseFloat(x.trim()));
+        if (parts.length !== 2 || parts.some(isNaN)) return null;
+        const [lat, lon] = parts;
+        if (lat < -90 || lat > 90 || lon < -180 || lon > 180) return null;
+        return [lat, lon];
+    }
+
+    const withCoords    = [];
+    const withoutCoords = [];
+    for (const loc of locationsRaw) {
+        const xy = parseCoords(loc.coords);
+        if (xy) withCoords.push({ ...loc, latlon: xy });
+        else    withoutCoords.push(loc);
+    }
+
+    const emptyMsg   = document.getElementById('project-location-map-empty');
+    const missingMsg = document.getElementById('project-location-map-missing');
+    const mapEl      = document.getElementById('project-location-map');
+    if (!mapEl) return;
+
+    if (withCoords.length === 0) {
+        // Hide the map block and show a hint.  Don't init Leaflet at all.
+        mapEl.classList.add('hidden');
+        emptyMsg.classList.remove('hidden');
+        return;
+    }
+
+    // Initialise Leaflet.  `L` is loaded globally by base.html.
+    const map = L.map(mapEl, { scrollWheelZoom: false });
+    L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+        attribution: '© OpenStreetMap',
+        maxZoom: 18,
+    }).addTo(map);
+
+    const markers = [];
+    const bounds  = [];
+    withCoords.forEach(loc => {
+        const marker = L.circleMarker(loc.latlon, {
+            radius:      8,
+            fillColor:   '#f48b1c',
+            color:       '#fff',
+            weight:      2,
+            opacity:     1,
+            fillOpacity: 0.9,
+        }).addTo(map);
+        marker.bindTooltip(loc.name, { direction: 'top', offset: [0, -6] });
+        marker.on('click', () => _flashLocationCard(loc.id));
+        markers.push(marker);
+        bounds.push(loc.latlon);
+    });
+
+    if (bounds.length === 1) {
+        map.setView(bounds[0], 14);
+    } else {
+        map.fitBounds(bounds, { padding: [20, 20] });
+    }
+    // Without this the map renders into a 0×0 area when the partial
+    // first lands via htmx (container size not yet stable).
+    setTimeout(() => map.invalidateSize(), 100);
+
+    if (withoutCoords.length > 0) {
+        const names = withoutCoords.map(l => l.name).join(', ');
+        missingMsg.textContent = `${withoutCoords.length} location${withoutCoords.length === 1 ? '' : 's'} not shown (no coordinates): ${names}`;
+        missingMsg.classList.remove('hidden');
+    }
+
+    // Briefly highlight the matching card to confirm the click.
+    function _flashLocationCard(locId) {
+        const card = document.querySelector(`.location-card[data-location-id="${locId}"]`);
+        if (!card) return;
+        card.scrollIntoView({ behavior: 'smooth', block: 'center' });
+        card.classList.add('ring-2', 'ring-seismo-orange');
+        setTimeout(() => card.classList.remove('ring-2', 'ring-seismo-orange'), 1500);
+    }
+})();
+</script>

templates/partials/projects/project_header.html

@@ -87,9 +87,14 @@
     </div>
 </div>
 
-<!-- Merge Modal -->
+<!-- Merge Modal —
+     min-h on the body ensures the typeahead dropdown has room to render
+     below the input without forcing the operator to scroll inside the
+     modal.  overflow-visible on the body lets the dropdown extend
+     beyond the body's natural height when needed. -->
 <div id="merge-modal" class="hidden fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm">
-    <div class="bg-white dark:bg-slate-800 rounded-xl shadow-2xl w-full max-w-2xl mx-4 max-h-[90vh] flex flex-col">
+    <div class="bg-white dark:bg-slate-800 rounded-xl shadow-2xl w-full max-w-2xl mx-4 max-h-[90vh] flex flex-col"
+         style="min-height: 480px;">
         <!-- Header -->
         <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-700 flex items-center justify-between">
             <div>
@@ -104,7 +109,7 @@
         </div>
 
         <!-- Body -->
-        <div class="px-6 py-4 overflow-y-auto flex-1">
+        <div class="px-6 py-4 overflow-y-auto flex-1 min-h-[320px]">
             <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
                 Target project
             </label>
@@ -202,6 +207,10 @@ async function _mergeFetchTargets() {
         return;
     }
 
+    // Stash target id + name in data-* attributes (NOT inline JS args)
+    // to avoid the quote-collision that breaks click binding when the
+    // project name contains characters JSON.stringify quotes.  Same
+    // pattern as the backfill typeahead dropdown.
     dropdown.innerHTML = candidates.map(m => {
         const scoreBadge = m.score >= 0.99
             ? '<span class="text-xs text-green-600 dark:text-green-400 ml-2">exact</span>'
@@ -212,8 +221,10 @@ async function _mergeFetchTargets() {
         if (m.location_count > 0) meta.push(`${m.location_count} location${m.location_count === 1 ? '' : 's'}`);
         const metaLine = meta.length ? `<div class="text-xs text-gray-500 dark:text-gray-400">${meta.join(' · ')}</div>` : '';
         return `<button type="button"
+            data-target-id="${_mergeEsc(m.id)}"
+            data-target-name="${_mergeEsc(m.name)}"
             onmousedown="event.preventDefault()"
-            onclick="onMergePickTarget('${_mergeEsc(m.id)}', ${JSON.stringify(m.name)})"
+            onclick="_mergePickFromButton(this)"
             class="w-full text-left px-3 py-2 hover:bg-gray-50 dark:hover:bg-slate-700 border-b border-gray-100 dark:border-gray-700 last:border-b-0">
             <div class="text-sm font-medium text-gray-900 dark:text-white">${_mergeEsc(m.name)}${scoreBadge}</div>
             ${metaLine}
@@ -222,6 +233,13 @@ async function _mergeFetchTargets() {
     dropdown.classList.remove('hidden');
 }
 
+// Trampoline — reads the button's data attributes and forwards.  Keeps
+// the inline onclick free of any string interpolation that could break
+// HTML quoting (see notes on the same pattern in metadata_backfill.html).
+function _mergePickFromButton(btn) {
+    onMergePickTarget(btn.dataset.targetId, btn.dataset.targetName);
+}
+
 async function onMergePickTarget(targetId, targetName) {
     document.getElementById('merge-target-input').value = targetName;
     document.getElementById('merge-target-id').value = targetId;