Rolodex UX: add /rolodex/{id}/edit route, prefill support for new form, fix edit links, and improve empty state guidance. Also fix header width lints in template.

app/main.py

@@ -2604,12 +2604,37 @@ async def rolodex_list(
 
 
 @app.get("/rolodex/new")
-async def rolodex_new(request: Request):
+async def rolodex_new(
+    request: Request,
+    prefill: str | None = Query(None, alias="_prefill"),
+    db: Session = Depends(get_db),
+):
     user = get_current_user_from_session(request.session)
     if not user:
         return RedirectResponse(url="/login", status_code=302)
 
-    return templates.TemplateResponse("rolodex_edit.html", {"request": request, "user": user, "client": None})
+    client = None
+    if prefill:
+        try:
+            client_id = int(prefill)
+            client = db.query(Client).filter(Client.id == client_id).first()
+        except ValueError:
+            client = None
+
+    return templates.TemplateResponse("rolodex_edit.html", {"request": request, "user": user, "client": client})
+
+
+@app.get("/rolodex/{client_id}/edit")
+async def rolodex_edit(client_id: int, request: Request, db: Session = Depends(get_db)):
+    user = get_current_user_from_session(request.session)
+    if not user:
+        return RedirectResponse(url="/login", status_code=302)
+
+    client = db.query(Client).filter(Client.id == client_id).first()
+    if not client:
+        raise HTTPException(status_code=404, detail="Client not found")
+
+    return templates.TemplateResponse("rolodex_edit.html", {"request": request, "user": user, "client": client})
 
 
 @app.get("/rolodex/{client_id}")