refactor: unify source URL handling in analytics

src/backend/routers/canvas.py

@@ -46,10 +46,10 @@ async def save_canvas(data: Dict[str, Any], auth: SessionData = Depends(require_
         width = app_state.get("width")
         height = app_state.get("height")
         zoom = app_state.get("zoom", {}).get("value")
-        api_path = str(request.url.path) if request else None
         full_url = None
         if request:
             full_url = str(request.base_url).rstrip("/") + str(request.url.path)
+            full_url = full_url.replace("http://", "https://")
         posthog.capture(
             distinct_id=user_id,
             event="canvas_saved",

src/backend/routers/user.py

@@ -1,18 +1,24 @@
 import jwt
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, Request
 import posthog
 
 from dependencies import SessionData, require_auth
 
 user_router = APIRouter()
 
 @user_router.get("/me")
-async def get_user_info(auth: SessionData = Depends(require_auth)):
+async def get_user_info(auth: SessionData = Depends(require_auth), request: Request = None):
     token_data = auth.token_data
     access_token = token_data.get("access_token")
 
     decoded = jwt.decode(access_token, options={"verify_signature": False})
 
+    # Build full URL (mirroring canvas.py logic)
+    full_url = None
+    if request:
+        full_url = str(request.base_url).rstrip("/") + str(request.url.path)
+        full_url = full_url.replace("http://", "https://")
+
     # Identify user in PostHog (mirrors frontend identify)
     posthog.identify(
         distinct_id=decoded["sub"],
@@ -22,7 +28,8 @@ async def get_user_info(auth: SessionData = Depends(require_auth)):
             "name": decoded.get("name", ""),
             "given_name": decoded.get("given_name", ""),
             "family_name": decoded.get("family_name", ""),
-            "email_verified": decoded.get("email_verified", False)
+            "email_verified": decoded.get("email_verified", False),
+            "$current_url": full_url
         }
     )
 
@@ -34,4 +41,4 @@ async def get_user_info(auth: SessionData = Depends(require_auth)):
         "given_name": decoded.get("given_name", ""),
         "family_name": decoded.get("family_name", ""),
         "email_verified": decoded.get("email_verified", False)
-    }
+    }