feat: Enhance data models and sorting logic for investors and projects

app/routers/projects.py

@@ -24,19 +24,29 @@ router = APIRouter(tags=["Project Routes"])
 def read_projects(
     page: int = Query(1, ge=1, description="Page number (starts at 1)"),
     page_size: int = Query(10, ge=1, le=100, description="Items per page (max 100)"),
+    include_archived: bool = Query(False, description="Include archived projects"),
     db: Session = Depends(get_db),
 ):
-    """Get all projects with their related data (paginated)"""
+    """Get all projects with their related data (paginated)
+    
+    By default, archived projects are excluded. Set include_archived=True to include them.
+    """
     # Calculate offset
     offset = (page - 1) * page_size
 
+    # Start with base query
+    query = db.query(ProjectTable)
+    
+    # Filter out archived projects by default
+    if not include_archived:
+        query = query.filter(ProjectTable.is_archived == 0)
+
     # Get total count
-    total_count = db.query(ProjectTable).count()
+    total_count = query.count()
 
     # Get paginated results
     projects = (
-        db.query(ProjectTable)
-        .options(
+        query.options(
             selectinload(ProjectTable.sector),
             selectinload(ProjectTable.investors),
             selectinload(ProjectTable.companies),
@@ -162,7 +172,7 @@ def update_project(
 
 @router.delete("/projects/{project_id}")
 def delete_project(project_id: int, db: Session = Depends(get_db)):
-    """Delete a project"""
+    """Delete a project permanently"""
     db_project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
 
     if not db_project:
@@ -174,6 +184,36 @@ def delete_project(project_id: int, db: Session = Depends(get_db)):
     return {"message": "Project deleted successfully"}
 
 
+@router.post("/projects/{project_id}/archive")
+def archive_project(project_id: int, db: Session = Depends(get_db)):
+    """Archive a project (soft delete)"""
+    db_project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+
+    if not db_project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    db_project.is_archived = 1
+    db.commit()
+    db.refresh(db_project)
+
+    return {"message": "Project archived successfully", "project_id": project_id}
+
+
+@router.post("/projects/{project_id}/unarchive")
+def unarchive_project(project_id: int, db: Session = Depends(get_db)):
+    """Unarchive a project (restore from archive)"""
+    db_project = db.query(ProjectTable).filter(ProjectTable.id == project_id).first()
+
+    if not db_project:
+        raise HTTPException(status_code=404, detail="Project not found")
+
+    db_project.is_archived = 0
+    db.commit()
+    db.refresh(db_project)
+
+    return {"message": "Project unarchived successfully", "project_id": project_id}
+
+
 @router.get("/projects/filter", response_model=PaginatedResponse[ProjectData])
 def filter_projects(
     stage: Optional[InvestmentStage] = Query(