feat: add api key auth, devii agent, openai gateway, and admin service management

This commit introduces a comprehensive set of new features including API key authentication with CLI management commands (get, reset, backfill), a Devii agentic assistant with WebSocket terminal and session bootstrap, an OpenAI-compatible LLM gateway service, and an admin service management panel. It also adds Playwright browser automation for bot support, configures internal gateway URLs, refactors content editing/deletion to support JSON API responses, and updates documentation across AGENTS.md, README.md, and the developer docs site.

devplacepy/routers/bookmarks.py

@@ -7,6 +7,8 @@ from devplacepy.database import get_table, db, paginate, resolve_object_url
 from devplacepy.templating import templates
 from devplacepy.utils import generate_uid, require_user, time_ago
 from devplacepy.seo import base_seo_context
+from devplacepy.responses import respond
+from devplacepy.schemas import SavedOut
 
 logger = logging.getLogger(__name__)
 router = APIRouter()
@@ -52,13 +54,13 @@ async def saved_page(request: Request, before: str = None):
         })
 
     seo_ctx = base_seo_context(request, title="Saved", description="Your saved content on DevPlace.", robots="noindex,nofollow")
-    return templates.TemplateResponse(request, "saved.html", {
+    return respond(request, "saved.html", {
         **seo_ctx,
         "request": request,
         "user": user,
         "items": items,
         "next_cursor": next_cursor,
-    })
+    }, model=SavedOut)
 
 
 @router.post("/{target_type}/{target_uid}")