OAuth Client — Unified ApplicationRegistration, OAuth server, and frontend (#18267)

## Summary

Consolidates three separate PRs (#18260, #18261, #18262) into a single
unified branch with all review feedback addressed:

### New features
- **ApplicationRegistration entity** — server-level registration for
OAuth apps with encrypted server variables
- **OAuth 2.0 server** — authorization code, client credentials, refresh
token grants with PKCE support
- **OAuth discovery endpoint** —
`.well-known/oauth-authorization-server` metadata
- **Frontend UI** — app registration details page with credential
management, redirect URI editing, and server variable configuration
- **CLI integration** — `twenty dev` auto-registers apps and stores
OAuth credentials locally
- **Authorize consent screen** — OAuth consent page at `/authorize`
showing requested scopes

### Review feedback addressed

**Renames (PR #18260):**
- `appRegistration` → `applicationRegistration` (entity, tables, files,
imports, GraphQL types)
- `appRegistrationVariable` → `applicationRegistrationVariable`
- `clientId` → `oAuthClientId`, `clientSecretHash` →
`oAuthClientSecretHash`, `redirectUris` → `oAuthRedirectUris`, `scopes`
→ `oAuthScopes`

**Security fixes (PR #18261):**
- Fixed redirect URI validation bypass when `oAuthRedirectUris` is an
empty array
- Fixed workspace isolation in `clientCredentialsGrant` — now uses
`find()` with explicit handling for multiple installations
- Added error logging in refresh token `catch` block instead of silently
swallowing

**Code quality (PR #18262):**
- Split `VersionDistributionEntry` into its own file (one export per
file)
- Split GraphQL queries and mutations into individual files with a
shared fragment
- Removed unused `OAuth` entry from `AuthProviderEnum`
- Added loading state to `handleRotateSecret`
- Removed 27 narration-style comments from test files
- Added proper guards (`PublicEndpointGuard`, `NoPermissionGuard`) to
controllers and resolvers

## Test plan

- [ ] Verify `twenty dev` registers an app and stores OAuth credentials
- [ ] Test OAuth authorization code flow end-to-end (authorize → token →
API call)
- [ ] Test client credentials grant
- [ ] Verify redirect URI validation rejects requests when no URIs are
registered
- [ ] Verify app registration detail page renders correctly
- [ ] Test secret rotation with loading state
- [ ] Verify server variable editing and saving
- [ ] Run `npx nx database:reset twenty-server` to validate migration

Closes #18260, #18261, #18262


Made with [Cursor](https://cursor.com)

---------

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>

packages/twenty-front/src/modules/settings/two-factor-authentication/hooks/useCurrentUserWorkspaceTwoFactorAuthentication.ts

@@ -1,7 +1,7 @@
 import { currentUserWorkspaceState } from '@/auth/states/currentUserWorkspaceState';
 import { useMemo } from 'react';
 import {
-  type TwoFactorAuthenticationMethodDto,
+  type TwoFactorAuthenticationMethodSummary,
   useInitiateOtpProvisioningMutation,
 } from '~/generated-metadata/graphql';
 import { useAtomStateValue } from '@/ui/utilities/state/jotai/hooks/useAtomStateValue';
@@ -12,7 +12,7 @@ export const useCurrentUserWorkspaceTwoFactorAuthentication = () => {
     useInitiateOtpProvisioningMutation();
 
   const currentUserWorkspaceTwoFactorAuthenticationMethods = useMemo(() => {
-    const methods: Record<string, TwoFactorAuthenticationMethodDto> = {};
+    const methods: Record<string, TwoFactorAuthenticationMethodSummary> = {};
 
     (currentUserWorkspace?.twoFactorAuthenticationMethodSummary ?? []).forEach(
       (method) => (methods[method.strategy] = method),