fix(oauth): route zed-hosted native-app callback back to the dashboard port (#10517)

* fix(deps): bump nanoid, dompurify for 2 new Dependabot alerts (#189, #190)

Bumps: nanoid ^3.3.17 (was transitive, now overridden), dompurify ^3.4.13
(with monaco-editor scoped override). Closes Dependabot #189, #190.

Remaining #182-#188 (js-yaml + mermaid) already closed by #9651 merge —
awaiting Dependabot re-scan.

npm audit → 0 vulnerabilities.

* fix(repo): harden .gitignore to also ignore a _tasks symlink (/_tasks)

_tasks is a SEPARATE nested git repo (gitignored). The pattern _tasks/ (trailing
slash) ignores only a directory, not a SYMLINK named _tasks. A self-referential
_tasks symlink can slip in via git add -A and, once pulled, checkout materializes
it over the real _tasks repo (destroying plans/specs/hands-off). Anchored /_tasks
ignores the symlink too, preventing re-capture.

* Hide health-check excluded models from /v1/models catalog (#10026)

Mirror the request-time exclusion rule (provider_specific_data.excludedModels)
in the unified catalog builder: a model is hidden when its provider has
connections but none of them is eligible for it. Applied across the
PROVIDER_MODELS, synced, custom, alias-backed, and managed-fallback loops
so ghost models no longer appear as available.

Co-authored-by: ritheshcn25 <ritheshcn25@users.noreply.github.com>

* fix(models): memoize getModelsDevPricing (event loop / healthz) (#10055)

* fix(models): memoize getModelsDevPricing for /v1/models catalog

resolveCatalogPricing called getModelsDevPricing once per model while
building GET /v1/models. Each call re-scanned models_dev_pricing and
JSON.parsed every row (~10k SQL scans + multi-GB parse work), pegging
the event loop so even /healthz timed out (#9685, #10052).

Memoize the parsed map until saveModelsDevPricing / clearModelsDevPricing
and add a unit test for invalidation.

Signed-off-by: Ravi Tharuma <RaviTharuma@users.noreply.github.com>

* fix(db): invalidate modelsDevPricing cache on DB reset (#10055)

Copilot review fixes:
1. Register invalidateModelsDevPricingCache() with DB state reset system
   so resetDbInstance() clears the process-local memo, preventing stale
   pricing data from surviving across DB reset/restore operations.
2. Add test assertion verifying DB reset bypasses the memo (Copilot #10055).

The process-local memo at modelsDevSync.ts:204 caches getModelsDevPricing()
results until saveModelsDevPricing()/clearModelsDevPricing() to avoid
re-scanning all pricing rows on every /v1/models request. Without this hook,
backup restore and test DB resets would serve stale cached data from the
previous connection.

Tests: npm run test:unit:serial -- tests/unit/modelsDevSync-extended.test.ts

---------

Signed-off-by: Ravi Tharuma <RaviTharuma@users.noreply.github.com>
Co-authored-by: Ravi Tharuma <RaviTharuma@users.noreply.github.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>

* fix(oauth): route Zed hosted sign-in callback back to the dashboard port

Zed's native-app sign-in always redirects the browser to the loopback port
sent as native_app_port (hardcoded default 58443), where nothing listens:
the browser shows "site can't be reached" and the login looks broken even
though the token is in the URL. The manual paste fallback was broken too -
handleManualSubmit requires a ?code= param that Zed's callback
(user_id + access_token) never carries, so the flow could never complete.

- zed-hosted: derive native_app_port from the dashboard's own loopback
  port so the redirect lands back on OmniRoute; remote/LAN origins keep
  the old default port and the paste flow
- app root: forward ?user_id=...&access_token=... to the /callback relay
  instead of dropping the query string on the /dashboard redirect
- /callback relay: recognize the Zed payload (no code param) and relay the
  full URL as the exchange payload; allow postMessage to both loopback
  spellings (localhost/127.0.0.1) of the same port
- OAuthModal: zed-hosted popup auto-completes on true localhost; the
  manual paste path passes the full URL through to the exchange instead
  of erroring with "No authorization code found"
- manual input panel: zed-hosted-specific placeholder and hint
- tests: extend the postMessage scope guard with the loopback same-port
  trusted origins

* changelog: fragment for #10517

* fix(oauth): derive Zed native_app_port from server config, not browser scheme/port

resolveDashboardLoopbackPort() previously re-derived the dashboard's loopback
port from the browser-supplied redirectUri (window.location.port ||
protocol === "https:" ? "443" : "80"), which produced http://127.0.0.1:443/
native-app redirects when the dashboard was reached over HTTPS on its
implicit default port (e.g. behind a local TLS-terminating reverse proxy) -
a scheme/port mismatch, since Zed's own redirect is always plain http and
nothing serves plain HTTP on 443 in that scenario.

This code runs server-side (in the OAuth authorize API route), so once the
redirect URI's hostname is confirmed loopback it now uses the OmniRoute
process's own authoritative listening port via getRuntimePorts()
(OMNIROUTE_PORT/PORT/DASHBOARD_PORT) instead of re-deriving it from the
browser-observed scheme/port. Non-loopback (remote/LAN) redirect URIs still
return null and fall back to the manual paste flow.

Adds tests/unit/zed-hosted-loopback-port-derivation.test.ts (8 cases)
covering the port-derivation logic directly, including the HTTPS-default-port
mismatch scenario that motivated this fix, env-var precedence, IPv6 loopback,
non-loopback/remote fallback, and buildAuthUrl's native_app_port wiring.

Also rebaselines config/quality/file-size-baseline.json for OAuthModal.tsx's
own growth from this PR's earlier commit (1134->1149 gate units) - legitimate
zed-hosted callback wiring at the existing provider-switch chokepoint, not
extractable without a broader modal decomposition (tracked in #3501).

The live Zed OAuth handshake itself (root -> /callback -> OAuthModal exchange
against the real zed.dev endpoint) still needs a documented VPS smoke test
per Hard Rule #18; this fix covers the TDD-able port-derivation logic that
motivated the change.

Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>

---------

Signed-off-by: Ravi Tharuma <RaviTharuma@users.noreply.github.com>
Co-authored-by: diegosouzapw <diegosouzapw@users.noreply.github.com>
Co-authored-by: Diego Rodrigues de Sa e Souza <diegosouza.pw@outlook.com>
Co-authored-by: diegosouzapw <diegosouza.pw@gmail.com>
Co-authored-by: ritheshcn25 <rithesh.chandran@snb.ca>
Co-authored-by: ritheshcn25 <ritheshcn25@users.noreply.github.com>
Co-authored-by: Ravi Tharuma <25951435+RaviTharuma@users.noreply.github.com>
Co-authored-by: Ravi Tharuma <RaviTharuma@users.noreply.github.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>

src/app/callback/page.tsx

@@ -23,11 +23,21 @@ export default function CallbackPage() {
 
   useEffect(() => {
     const params = new URLSearchParams(window.location.search);
-    const code = params.get("code");
+    let code = params.get("code");
     const state = params.get("state");
     const error = params.get("error");
     const errorDescription = params.get("error_description");
 
+    // Zed native-app sign-in: the redirect carries user_id + access_token and no
+    // ?code= — the FULL URL is the exchange payload (zed-hosted's exchangeToken
+    // parses and RSA-decrypts it server-side). Rewritten here from `/` by the
+    // root page handler so the waiting OAuth modal receives it via the same
+    // postMessage/BroadcastChannel/localStorage relay as every other provider.
+    const zedAccessToken = params.get("access_token") || params.get("accessToken");
+    if (!code && zedAccessToken && (params.get("user_id") || params.get("userId"))) {
+      code = window.location.href;
+    }
+
     const callbackData = {
       code,
       state,
@@ -63,6 +73,13 @@ export default function CallbackPage() {
     // same-origin fallback when the opener was severed by COOP.
     const trustedTargetOrigins = [
       window.location.origin, // Same origin (dashboard popup mode).
+      // Loopback hostname variants of the same port: the dashboard may be open
+      // on 127.0.0.1:PORT while Zed's redirect (or vice versa) lands on
+      // localhost:PORT — both names are the operator's own machine, so the
+      // callback may be delivered to either. Same rationale as the 1455 entries.
+      ...(window.location.port
+        ? [`http://localhost:${window.location.port}`, `http://127.0.0.1:${window.location.port}`]
+        : []),
       "http://localhost:1455", // Codex helper (fixed loopback port).
       "http://127.0.0.1:1455", // Same Codex helper, IPv4 literal form.
     ];