feat: create new links directly from contact pages

Contact detail: + New Link button redirects to link form with contact context.
Contact create/edit form: inline new link rows (label/url/role) created on submit.

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

routers/links.py

@@ -52,6 +52,7 @@ async def create_form(
     project_id: Optional[str] = None,
     task_id: Optional[str] = None,
     meeting_id: Optional[str] = None,
+    contact_id: Optional[str] = None,
     db: AsyncSession = Depends(get_db),
 ):
     sidebar = await get_sidebar_data(db)
@@ -67,6 +68,7 @@ async def create_form(
         "prefill_project_id": project_id or "",
         "prefill_task_id": task_id or "",
         "prefill_meeting_id": meeting_id or "",
+        "prefill_contact_id": contact_id or "",
     })
 
 
@@ -75,6 +77,7 @@ async def create_link(
     request: Request, label: str = Form(...), url: str = Form(...),
     domain_id: Optional[str] = Form(None), project_id: Optional[str] = Form(None),
     task_id: Optional[str] = Form(None), meeting_id: Optional[str] = Form(None),
+    contact_id: Optional[str] = Form(None),
     description: Optional[str] = Form(None), tags: Optional[str] = Form(None),
     db: AsyncSession = Depends(get_db),
 ):
@@ -99,6 +102,15 @@ async def create_link(
         VALUES (:fid, :lid) ON CONFLICT DO NOTHING
     """), {"fid": default_fid, "lid": link["id"]})
 
+    # Attach to contact if created from contact context
+    if contact_id and contact_id.strip():
+        await db.execute(text("""
+            INSERT INTO contact_links (contact_id, link_id)
+            VALUES (:cid, :lid) ON CONFLICT DO NOTHING
+        """), {"cid": contact_id, "lid": link["id"]})
+        await db.commit()
+        return RedirectResponse(url=f"/contacts/{contact_id}", status_code=303)
+
     # Redirect back to context if created from task/meeting/project
     if task_id and task_id.strip():
         return RedirectResponse(url=f"/tasks/{task_id}?tab=links", status_code=303)