docs: update project documentation for v0.11.11.0

- CLAUDE.md: add .github/ CI infrastructure to project structure, remove
  duplicate bin/ entry
- TODOS.md: mark Linux cookie decryption as partially shipped (v0.11.11.0),
  Windows DPAPI remains deferred
- package.json: sync version 0.11.9.0 → 0.11.11.0 to match VERSION file

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -79,12 +79,14 @@ gstack/
 ├── office-hours/    # /office-hours skill (YC Office Hours — startup diagnostic + builder brainstorm)
 ├── investigate/     # /investigate skill (systematic root-cause debugging)
 ├── retro/           # Retrospective skill (includes /retro global cross-project mode)
-├── bin/             # Standalone scripts (gstack-global-discover for cross-tool session discovery)
+├── bin/             # CLI utilities (gstack-repo-mode, gstack-slug, gstack-config, etc.)
 ├── document-release/ # /document-release skill (post-ship doc updates)
 ├── cso/             # /cso skill (OWASP Top 10 + STRIDE security audit)
 ├── design-consultation/ # /design-consultation skill (design system from scratch)
 ├── setup-deploy/    # /setup-deploy skill (one-time deploy config)
-├── bin/             # CLI utilities (gstack-repo-mode, gstack-slug, gstack-config, etc.)
+├── .github/         # CI workflows + Docker image
+│   ├── workflows/   # evals.yml (E2E on Ubicloud), skill-docs.yml, actionlint.yml
+│   └── docker/      # Dockerfile.ci (pre-baked toolchain + Playwright/Chromium)
 ├── setup            # One-time setup: build binary + symlink skills
 ├── SKILL.md         # Generated from SKILL.md.tmpl (don't edit directly)
 ├── SKILL.md.tmpl    # Template: edit this, run gen:skill-docs