fix(notebooklm): support redirected domain

[lingjiuu]

Description

NotebookLM now redirects notebooklm.google.com to notebook.google.com. The adapter previously treated the redirected page as unavailable before notebooklm list could use its existing RPC or DOM paths.

This change:

• accepts both NotebookLM hosts while keeping notebooklm.google.com canonical for generated URLs;
• uses a same-origin relative RPC path so requests follow the active page origin;
• preserves session validation before the RPC-first, DOM-fallback flow;
• updates notebook URL parsing and status for the redirected host;
• adds regression coverage for both transport and fallback behavior.

Related issue: Closes #2214

Type of Change

• 🐛 Bug fix
• ✨ New feature
• 🌐 New site adapter
• 📝 Documentation
• ♻️ Refactor
• 🔧 CI / build / tooling

Checklist

• I ran the checks relevant to this PR
• I updated tests or docs if needed
• I included live CLI output when useful

Documentation (if adding/modifying an adapter)

• Added a new adapter documentation page
• Updated adapter indexes or sidebar
• Updated README command discoverability
• No command argument changes were needed
• Expected adapter failures use typed OpenCLI errors

Screenshots / Output

The failure was reproduced with an authenticated Chrome session: https://notebooklm.google.com/ redirected to https://notebook.google.com/?pli=1.

After the fix:

$ node dist/src/main.js notebooklm list -f json
# authenticated Chrome session redirected to notebook.google.com
# exit code: 0; returned 18 notebook rows through RPC
# no NOTEBOOKLM_UNAVAILABLE error

Checks completed:

• npx vitest run --project adapter clis/notebooklm — 18 files / 105 tests
• npx vitest run --project adapter — 501 files / 5206 tests
• npm run typecheck
• git diff --check
• Live verification with an authenticated Chrome session