chore: Use @supabase/config for the code configuration page (#50398)

How to test:
1. Connect a project to GH repo
2. Deploy the `config.toml` once
3. Change some setting in Auth
4. You should see a change in
`/dashboard/project/_/settings/code-configuration`

<img width="1271" height="1186" alt="Screenshot 2026-09-16 at 16 26 39"
src="https://github.com/user-attachments/assets/dfc135a4-e495-489e-88fd-b760383793b4"
/>

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Configuration drift comparisons now use a consistent project
configuration schema.
- Drift details display complete current-environment and `config.toml`
values, grouped by section.
- Matching and unmanaged settings are organized into dedicated sections.
  - Configuration fields link directly to relevant Studio settings.
  - Added a warning that GitHub deployments overwrite local changes.

- **Bug Fixes**
- Configuration updates now refresh project configuration data
automatically.
  - Improved labels and formatting for boolean and redirect URL values.
- Drift errors identify invalid configuration paths and provide
corrective guidance.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/studio/package.json

@@ -68,6 +68,7 @@
     "@stripe/stripe-js": "9.1.0",
     "@stripe/sync-engine": "1.0.32",
     "@supabase/auth-js": "catalog:",
+    "@supabase/config": "^0.9.0",
     "@supabase/mcp-server-supabase": "^0.12.0",
     "@supabase/pg-meta": "workspace:*",
     "@supabase/realtime-js": "catalog:",
@@ -102,6 +103,7 @@
     "d3-geo": "^3.1.1",
     "dayjs": "^1.11.10",
     "dev-tools": "workspace:*",
+    "effect": "4.0.0-rc.112",
     "file-saver": "^2.0.5",
     "framer-motion": "^11.18.2",
     "fuse.js": "^7.4.0",