Add project registry and Coolify sync endpoints

- GET/PUT/DELETE /:project/meta — project metadata (gitea repo, coolify app ID)
- GET /projects — list all registered projects
- POST /:project/:env/sync-coolify — push secrets as env vars to Coolify app
- New CONFIG_META KV namespace
- Env bindings for COOLIFY_API_TOKEN and COOLIFY_BASE_URL

wrangler.toml

@@ -13,3 +13,7 @@ id = "425dd5e9d641479e8130d20b83fa0224"
 [[kv_namespaces]]
 binding = "CONFIG_FILES"
 id = "f2c224cbfce04852ba4616d51fa545b7"
+
+[[kv_namespaces]]
+binding = "CONFIG_META"
+id = "6ab687ed121e471990160f3a8e46cf18"