v1.91.4.0 fix: Windows Opera cookie import wave (#2980, refs #2957) (#2987)

* fix: support Windows Opera and Opera GX cookie imports

Fixes #2957

* fix: repair Windows cookie decryption and make Opera import failures actionable

- strip the SHA-256(host_key) prefix Chromium adds to v10 values (DB meta v24+) on Windows
- keep receipts and name `$B handoff` recovery for App-Bound rows in browsers without native extraction
- explain missing browsers, missing profiles and ambiguous profile selection with next steps
- add windowsNative/resolveBrowserInfo, the operagx alias and sorted failure reasons in CLI output
- cover the Node server runtime with a real-DPAPI Windows test

* docs: document Windows Opera cookie import and guard browser lists against drift

* chore: file cookie-import follow-ups from the Opera fix wave review

* test: keep Opera receipt tests independent of the shared key cache

* test: declare generated gstack/llms.txt as a command-reference input for PR selection

* chore: release v1.91.4.0

* test: reconstruct the historical cookie-workflow approval after the Opera BROWSER.md additions

* test: run the real-DPAPI Windows check with the runner's environment

PowerShell launched with a stripped environment took ~18-21s on the Windows
runner (measured on a throwaway diagnostics run), past dpapiDecrypt's 10s
deadline; with the full environment it returns in ~0.3s. Only APPDATA is
redirected to the fixture's Opera root.

---------

Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>

browse/src/commands.ts

@@ -130,7 +130,7 @@ export const COMMAND_DESCRIPTIONS: Record<string, { category: string; descriptio
   'viewport':{ category: 'Interaction', description: 'Set viewport size and optional deviceScaleFactor (1-3, for retina screenshots). --scale requires a context rebuild.', usage: 'viewport [<WxH>] [--scale <n>]' },
   'cookie':  { category: 'Interaction', description: 'Set cookie on current page domain', usage: 'cookie <name>=<value>' },
   'cookie-import': { category: 'Interaction', description: 'Import cookies from JSON file', usage: 'cookie-import <json>' },
-  'cookie-import-browser': { category: 'Interaction', description: 'Copy cookies from chrome, chromium, brave, edge, or macOS-only comet, arc, dia. Omitted browser retains legacy comet; select the intended browser explicitly. --domain requires a matching current page; no scope flag opens the picker. --profile is the source directory; ambiguous profiles require selection. --all explicitly selects every non-expired cookie and cannot accompany --domain or --clear-storage. Storage is preserved unless --clear-storage resets captured-origin localStorage (shared across context tabs) and target-tab sessionStorage. --verify-auth requires daemon GSTACK_COOKIE_AUTH_SELECTOR and GSTACK_COOKIE_AUTH_EXPECTED_IDENTITY before startup; missing config rejects before mutation. Verified means an exact visible identity match, not cookie counts or HTTP 200. Windows native extraction remains disabled pending qualification.', usage: 'cookie-import-browser [browser] [--domain d] [--profile p] [--all] [--clear-storage] [--verify-auth]' },
+  'cookie-import-browser': { category: 'Interaction', description: 'Copy cookies from chrome, chromium, brave, edge, Windows-only opera, opera-gx, or macOS-only comet, arc, dia. Omitted browser retains legacy comet; select the intended browser explicitly. --domain requires a matching current page; no scope flag opens the picker. --profile is the source directory; ambiguous profiles require selection. --all explicitly selects every non-expired cookie and cannot accompany --domain or --clear-storage. Storage is preserved unless --clear-storage resets captured-origin localStorage (shared across context tabs) and target-tab sessionStorage. --verify-auth requires daemon GSTACK_COOKIE_AUTH_SELECTOR and GSTACK_COOKIE_AUTH_EXPECTED_IDENTITY before startup; missing config rejects before mutation. Verified means an exact visible identity match, not cookie counts or HTTP 200. Windows native extraction remains disabled pending qualification.', usage: 'cookie-import-browser [browser] [--domain d] [--profile p] [--all] [--clear-storage] [--verify-auth]' },
   'header':  { category: 'Interaction', description: 'Set custom request header (colon-separated, sensitive values auto-redacted)', usage: 'header <name>:<value>' },
   'useragent': { category: 'Interaction', description: 'Set user agent', usage: 'useragent <string>' },
   'dialog-accept': { category: 'Interaction', description: 'Auto-accept next alert/confirm/prompt. Optional text is sent as the prompt response', usage: 'dialog-accept [text]' },