fix: improve MCP page setup UX and remove automation credit quotas (#821)

* Remove MCP credit quotas and improve MCP setup page

- Always show client setup snippets with placeholder keys
- Add View Docs link to MCP page header
- Remove monthly automation credit enforcement and UI
- Update plan feature text to reflect free MCP access

Co-authored-by: Rotimi Best <[email protected]>

* fix: address PR review feedback for MCP page changes

- Clear generatedSecret when revoking MCP keys
- Use Button link mode for View Docs with rel noopener noreferrer
- Update all dashboard locale files for MCP translations
- Make MCP rate-limit admission atomic with transactional reservations
- Wrap MCP route handlers with withMcpAutomationUsage helper

Co-authored-by: Rotimi Best <[email protected]>

* revert: remove atomic MCP rate-limit reservations

The transactional advisory-lock reservation was unnecessary complexity
for our MCP usage model. Restore the simpler check-then-record flow.

Also only clear generatedSecret when revoking the key it belongs to.

Co-authored-by: Rotimi Best <[email protected]>

* fix: address remaining MCP page bot review feedback

- Add blank lines after confirm guards in key handlers
- Skip showing rotated secret if key was revoked during rotation
- Fix vi keys_title and de rate_limits_title translations

Co-authored-by: Rotimi Best <[email protected]>

* fix: prevent late key rotation from un-revoking or exposing secrets

- Rotate only when revoked_at IS NULL at update time (DB)
- Reject rotate requests for already-revoked keys (API)
- Ignore stale rotate responses in automation client state
- Guard MCP UI against showing secrets for revoked keys

Co-authored-by: Rotimi Best <[email protected]>

---------

packages/db/src/queries/organization/automation-key.ts

@@ -119,3 +119,33 @@ export const updateOrganizationApiKey = async (
     throw new Error('Failed to update organization API key');
   }
 };
+
+export const rotateOrganizationApiKeyIfActive = async (
+  organizationId: string,
+  keyId: string,
+  data: Pick<TOrganizationApiKey, 'secretPrefix' | 'secretHash'>
+): Promise<TOrganizationApiKey | null> => {
+  try {
+    const [row] = await db
+      .update(schema.organizationApiKey)
+      .set({
+        secretPrefix: data.secretPrefix,
+        secretHash: data.secretHash,
+        lastUsedAt: null,
+        updatedAt: new Date().toISOString()
+      })
+      .where(
+        and(
+          eq(schema.organizationApiKey.organizationId, organizationId),
+          eq(schema.organizationApiKey.id, keyId),
+          isNull(schema.organizationApiKey.revokedAt)
+        )
+      )
+      .returning();
+
+    return row || null;
+  } catch (error) {
+    console.error('rotateOrganizationApiKeyIfActive error:', error);
+    throw new Error('Failed to rotate organization API key');
+  }
+};