feat: Refactor project creation and management to support modular project types

- Updated project creation modal to allow selection of optional modules (Sound and Vibration Monitoring).
- Modified project dashboard and header to display active modules and provide options to add/remove them.
- Enhanced project detail view to dynamically adjust UI based on enabled modules.
- Implemented a new migration script to create a `project_modules` table and seed it based on existing project types.
- Adjusted form submissions to handle module selections and ensure proper API interactions for module management.

backend/models.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, String, DateTime, Boolean, Text, Date, Integer
+from sqlalchemy import Column, String, DateTime, Boolean, Text, Date, Integer, UniqueConstraint
 from datetime import datetime
 from backend.database import Base
 
@@ -177,7 +177,7 @@ class Project(Base):
     project_number = Column(String, nullable=True, index=True)  # TMI ID: xxxx-YY format (e.g., "2567-23")
     name = Column(String, nullable=False, unique=True)  # Project/site name (e.g., "RKM Hall")
     description = Column(Text, nullable=True)
-    project_type_id = Column(String, nullable=False)  # FK to ProjectType.id
+    project_type_id = Column(String, nullable=True)  # Legacy FK to ProjectType.id; use ProjectModule for feature flags
     status = Column(String, default="active")  # active, on_hold, completed, archived, deleted
 
     # Data collection mode: how field data reaches Terra-View.
@@ -197,6 +197,22 @@ class Project(Base):
     deleted_at = Column(DateTime, nullable=True)  # Set when status='deleted'; hard delete scheduled after 60 days
 
 
+class ProjectModule(Base):
+    """
+    Modules enabled on a project. Each module unlocks a set of features/tabs.
+    A project can have zero or more modules (sound_monitoring, vibration_monitoring, etc.).
+    """
+    __tablename__ = "project_modules"
+
+    id = Column(String, primary_key=True, default=lambda: __import__('uuid').uuid4().__str__())
+    project_id = Column(String, nullable=False, index=True)  # FK to projects.id
+    module_type = Column(String, nullable=False)  # sound_monitoring | vibration_monitoring | ...
+    enabled = Column(Boolean, default=True, nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+    __table_args__ = (UniqueConstraint("project_id", "module_type", name="uq_project_module"),)
+
+
 class MonitoringLocation(Base):
     """
     Monitoring locations: generic location for monitoring activities.