* fix: prevent Invalid URL crash when APP_URL lacks a protocol (issue #970)
- Add getMcpSafeUrl() to notifications.ts: wraps getAppUrl() and
guarantees a result that satisfies the MCP SDK's checkIssuerUrl
requirement (https:// or http://localhost). Non-HTTPS, non-localhost
URLs fall back to http://localhost:{PORT} instead of propagating an
"Issuer URL must be HTTPS" error.
- Switch app.ts, mcp/index.ts, mcp/oauthProvider.ts, and oauthService.ts
to import getMcpSafeUrl instead of getAppUrl for all MCP resource URL
construction, so a misconfigured APP_URL never crashes the metadata
router initialisation.
- Restrict the SDK metadata router middleware to /.well-known/* paths
only. Previously it was invoked on every request; in production the
lazy getMetaRouter() init ran on GET / and threw "Invalid URL" when
APP_URL had no scheme, returning 500 for every page load.
- Log a startup warning when APP_URL is set but not usable, and include
the resolved App URL in the startup banner so operators can confirm
the correct value at a glance.
- Update oauth.test.ts mock to target notifications.getMcpSafeUrl.
* fix: show getAppUrl in banner and add two separate APP_URL startup checks
- Banner now displays getAppUrl() (the resolved app URL) rather than
getMcpSafeUrl() so operators see the actual configured value
- Two independent startup warnings after the banner when APP_URL is set:
1. whether APP_URL is a valid URL (parseable by new URL())
2. whether APP_URL is MCP-safe (https:// or http://localhost)
- Fix getMcpSafeUrl() fallback port to use Number(PORT) || 3001,
consistent with how index.ts parses PORT
* fix: update oidc.ts to import getAppUrl from notifications