fix: merge-time follow-ups for #400, #401, #362 and #388

Each item is from the pre-merge review of the PR it names, applied on master
rather than by pushing to a contributor branch.

#400 (response viewer, shenlvkang-collab)
- The brief view opened at `scrollTop = 0`, right when it was a single card
  holding the last row. Now that it renders the whole turn, the top is the
  turn's first narration line and the answer can be screens below it, while
  loadFullContext already scrolls to the bottom of the same turn. A multi-row
  turn now opens at its newest text; a single card still opens at the top.

#401 (loopback links as web tabs, shenlvkang-collab)
- Drop `*.localhost` from the auto-route set. Every other member is an address
  literal that can only mean this box; a `*.localhost` DNS name is not one, and
  a resolver with a search domain retries `evil.localhost` as
  `evil.localhost.<search domain>`. The link source is agent-written terminal
  output, so that set is the whole confinement on a tap that makes Codeman
  fetch a URL server-side and persist it. The page-side test stays broader
  (`isOnBoxHostname`), where a false positive only declines to proxy.
- A link to the origin root navigated nothing: the path was flattened to '',
  which openWebview reads as "no deep link", leaving an open frame where it was.
- `this.webviews` being set does not mean it is loaded. initWebviews() assigns a
  truthy empty map and only then awaits the list, so a tap during page load
  found nothing to reuse and POSTed a duplicate record. Join the in-flight
  refresh instead.
- One dashboard per dev server rather than per host spelling, which is what the
  method's own comment already promised.
- Toast on the auto-create: it writes webviews.json, broadcasts over SSE and
  adds a Run-dropdown row on every signed-in device, with a new tab as its only
  previous signal.

#362 (remote omp continuation, timkjr)
- Accept the allowlisted `mode === 'omp'` arm as-is; a blanket registry render
  would hand deepseek a locally-resolved --profile and bypass claude's own
  overlay. A registry-declared switch is the follow-up if a third mode needs it.
- Revert the whole-file Prettier reformat of docs/remote-sessions.md (docs/ is
  hand-formatted and outside `npm run format`), keeping only the two new
  sections.
- Correct three stale passages: architecture-invariants' `exec claude
  --dangerously-skip-permissions`, the `exec <cli>` paragraph (claude and omp
  now have their own arms, and the claude pane's PID is the login shell), and
  omp-integration's `-c 'omp'`. RemoteCommandMode gains deepseek and omp.
- Add the missing `_maybeCaptureOmpSessionId` remote-guard test; the sibling
  guard in `_pinOmpRespawnId` had one and this path runs earlier, on the first
  idle turn.

#388 (keyCode 229 recovery, aakhter)
- Gate notifyCanonicalData on shouldSuppressTerminalQueryResponse and
  isTerminalFocusOrMouseReport. onData also carries the DA/DSR/CPR/OSC replies
  xterm answers during Ink redraws and its SGR mouse and focus reports; any of
  those landing between the keydown and the candidate's resolution was read as
  "xterm spoke for this keystroke", standing the recovery down and leaving the
  character dropped, worst on a busy agent pane. Reached through
  window.CodemanTerminalInput: the predicates live in a module IIFE that closes
  long before this call site, so bare references would throw into the
  surrounding try/catch and stop the notify from ever running.

Every fix has a test that fails without it (verified by reverting each).
Full gate green on the combined tree: 358 files, 6849 tests.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

test/webview-loopback-links.test.ts

@@ -95,6 +95,8 @@ function boot(pageUrl = 'http://192.168.1.135:8095/') {
 
 interface WebviewLinks {
   isLoopbackHostname(host: string): boolean;
+  isOnBoxHostname(host: string): boolean;
+  webTabOriginKey(url: URL): string;
   linkNeedsWebTabProxy(url: string, pageHostname: string): boolean;
 }
 
@@ -108,16 +110,7 @@ describe('loopback link decision', () => {
   const links = win.CodemanWebviewLinks;
 
   it('recognises every loopback spelling and nothing else', () => {
-    for (const host of [
-      'localhost',
-      'LOCALHOST',
-      'app.localhost',
-      '127.0.0.1',
-      '127.1.2.3',
-      '0.0.0.0',
-      '[::1]',
-      '::1',
-    ]) {
+    for (const host of ['localhost', 'LOCALHOST', '127.0.0.1', '127.1.2.3', '0.0.0.0', '[::1]', '::1']) {
       expect(links.isLoopbackHostname(host), host).toBe(true);
     }
     for (const host of [
@@ -133,6 +126,31 @@ describe('loopback link decision', () => {
     }
   });
 
+  it('keeps *.localhost OUT of the auto-route set, because it is a DNS name an attacker can steer', () => {
+    // Every other member of the set is an address literal that can only mean
+    // this box. `evil.localhost` is not: on a resolver that does not synthesise
+    // *.localhost locally and has a search domain configured, it NXDOMAINs as
+    // absolute and is retried as `evil.localhost.<search domain>`. The link
+    // source is agent-written terminal output, so this set is the whole
+    // confinement on a tap that makes Codeman fetch a URL and persist it.
+    expect(links.isLoopbackHostname('app.localhost')).toBe(false);
+    expect(links.isLoopbackHostname('evil.localhost')).toBe(false);
+    expect(links.linkNeedsWebTabProxy('http://evil.localhost/', '192.168.1.135')).toBe(false);
+
+    // The PAGE-side test stays broader: a false positive there only ever
+    // DECLINES to proxy, leaving the caller's own direct open untouched.
+    expect(links.isOnBoxHostname('app.localhost')).toBe(true);
+    expect(links.linkNeedsWebTabProxy('http://localhost:5173/', 'app.localhost')).toBe(false);
+  });
+
+  it('keys a dashboard per dev server, not per host spelling', () => {
+    const key = (u: string) => links.webTabOriginKey(new URL(u));
+    expect(key('http://localhost:5173/')).toBe(key('http://127.0.0.1:5173/'));
+    expect(key('http://localhost:5173/')).not.toBe(key('http://localhost:5174/'));
+    expect(key('http://localhost:5173/')).not.toBe(key('https://localhost:5173/'));
+    expect(key('http://box.ts.net:3000/')).toBe('http://box.ts.net:3000');
+  });
+
   it('proxies a loopback http(s) link only when the page is not on that box', () => {
     expect(links.linkNeedsWebTabProxy('http://localhost:5173/', '192.168.1.135')).toBe(true);
     expect(links.linkNeedsWebTabProxy('https://127.0.0.1:8443/x?y=1', 'box.ts.net')).toBe(true);
@@ -171,6 +189,54 @@ describe('openLinkThroughWebTabIfLoopback', () => {
     expect(win.document.querySelectorAll('.webview-frame').length).toBe(1);
   });
 
+  it('navigates an already-mounted frame back to the origin ROOT, which used to do nothing', async () => {
+    // openUrlInWebTab used to flatten '/' to '', and openWebview reads an empty
+    // path as "no deep link", so it mounted with navigate:false and an open
+    // frame stayed on whatever page it was showing. Deep links navigated; a tap
+    // on the bare origin silently did not.
+    const { win, app } = boot();
+    await app.openUrlInWebTab('http://localhost:5173/deep/page?a=1');
+    expect(frameSrc(win, 'dev')).toBe('/webview/cap-dev/deep/page?a=1');
+
+    await app.openUrlInWebTab('http://localhost:5173/');
+    expect(frameSrc(win, 'dev')).toBe('/webview/cap-dev/');
+    expect(win.document.querySelectorAll('.webview-frame').length).toBe(1);
+  });
+
+  it('reuses one dashboard across host spellings of the same dev server', async () => {
+    const { win, app, calls } = boot();
+    // The saved dashboard is http://localhost:5173/; a 127.0.0.1 link to the
+    // same port is the same server and must not mint a second tab.
+    await app.openUrlInWebTab('http://127.0.0.1:5173/status');
+    expect(frameSrc(win, 'dev')).toBe('/webview/cap-dev/status');
+    expect(calls.find((c) => c.method === 'POST' && c.path === '/api/webviews')).toBeUndefined();
+    expect(win.document.querySelectorAll('.webview-frame').length).toBe(1);
+  });
+
+  it('waits for an in-flight webview load instead of POSTing a duplicate record', async () => {
+    // initWebviews() assigns a truthy EMPTY map synchronously and only then
+    // awaits GET /api/webviews, so "is this.webviews set" answered "is it
+    // loaded" wrongly: a tap inside that round trip found nothing to reuse and
+    // saved a second dashboard for an origin that already existed server-side.
+    const { win, app, calls } = boot();
+    const loaded = app.webviews;
+    app.webviews = new Map();
+    let release: () => void = () => {};
+    const gate = new Promise<void>((resolve) => {
+      release = resolve;
+    });
+    (app as unknown as { _webviewsRefresh: Promise<void> })._webviewsRefresh = gate.then(() => {
+      app.webviews = loaded;
+    });
+
+    const tap = app.openUrlInWebTab('http://localhost:5173/late');
+    release();
+    await tap;
+
+    expect(calls.find((c) => c.method === 'POST' && c.path === '/api/webviews')).toBeUndefined();
+    expect(frameSrc(win, 'dev')).toBe('/webview/cap-dev/late');
+  });
+
   it('saves an unknown origin under its host:port, then opens it', async () => {
     const { win, app, calls } = boot();
     expect(app.openLinkThroughWebTabIfLoopback('http://127.0.0.1:3000/')).toBe(true);