feat: return-to-project redirects from create/edit forms

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

routers/tasks.py

@@ -322,7 +322,7 @@ async def task_detail(
 
 
 @router.get("/{task_id}/edit")
-async def edit_form(task_id: str, request: Request, db: AsyncSession = Depends(get_db)):
+async def edit_form(task_id: str, request: Request, from_project: Optional[str] = None, db: AsyncSession = Depends(get_db)):
     repo = BaseRepository("tasks", db)
     sidebar = await get_sidebar_data(db)
     item = await repo.get(task_id)
@@ -344,6 +344,7 @@ async def edit_form(task_id: str, request: Request, db: AsyncSession = Depends(g
         "page_title": f"Edit Task", "active_nav": "tasks",
         "item": item,
         "prefill_domain_id": "", "prefill_project_id": "", "prefill_parent_id": "",
+        "from_project": from_project or "",
     })
 
 
@@ -363,6 +364,7 @@ async def update_task(
     tags: Optional[str] = Form(None),
     estimated_minutes: Optional[str] = Form(None),
     energy_required: Optional[str] = Form(None),
+    from_project: Optional[str] = Form(None),
     db: AsyncSession = Depends(get_db),
 ):
     repo = BaseRepository("tasks", db)
@@ -392,6 +394,13 @@ async def update_task(
         data["completed_at"] = None
 
     await repo.update(task_id, data)
+
+    # Redirect back to project context if applicable
+    new_project = data.get("project_id")
+    if from_project and from_project.strip():
+        if new_project and new_project != from_project:
+            return RedirectResponse(url=f"/projects/{new_project}?tab=tasks", status_code=303)
+        return RedirectResponse(url=f"/projects/{from_project}?tab=tasks", status_code=303)
     return RedirectResponse(url=f"/tasks/{task_id}", status_code=303)