docs: Update all documentation for v2.1.0 release

Updates across all major documentation files to reflect v2.1.0 release
status and recent completions.

Changes:
- CLAUDE.md:
  * Updated version from v2.0.0 to v2.1.0
  * Updated date to November 29, 2025
  * Updated test count from 391 to 427
  * Moved completed PRs (#195, #198) and Issue #203 to "Completed" section
  * Updated "Next Up" priorities

- README.md:
  * Updated version badge from 2.0.0 to 2.1.0
  * Updated test badge from 379 to 427 passing

- CHANGELOG.md:
  * Added Issue #203 (Configurable EXCLUDED_DIRS) to Unreleased section
  * Documented 19 comprehensive tests for exclude_dirs feature
  * Listed both extend and replace modes

- FUTURE_RELEASES.md:
  * Marked v2.1.0 as "Released" (November 29, 2025)
  * Moved "Fix 12 unified tests" to completed
  * Updated release schedule table

- FLEXIBLE_ROADMAP.md:
  * Updated current status from v1.0.0 to v2.1.0
  * Added latest release date
  * Expanded "What Works" section with new features
  * Updated test count to 427

All documentation now accurately reflects:
- v2.1.0 release status ✅
- 427 tests passing (up from 391) ✅  - Issue #203 completion ✅
- PR #195 and #198 merged status ✅

Related: #203

FUTURE_RELEASES.md

@@ -8,18 +8,22 @@ We follow semantic versioning (MAJOR.MINOR.PATCH) and maintain backward compatib
 
 ---
 
-## Next Release: v2.1.0 (Estimated: December 2025)
+## ✅ Release: v2.1.0 (Released: November 29, 2025)
 
 **Focus:** Test Coverage & Quality Improvements
 
-### Planned Features
+### Completed Features
 
 #### Testing & Quality
-- [ ] **Fix 12 unified scraping tests** - Complete test coverage for unified multi-source scraping
+- [x] **Fix 12 unified scraping tests** ✅ - Complete test coverage for unified multi-source scraping
   - ConfigValidator expecting dict instead of file path
   - ConflictDetector expecting dict pages, not list
   - Full integration test suite for unified workflow
 
+### Planned Features (Future v2.2.0)
+
+#### Testing & Quality
+
 - [ ] **Improve test coverage to 60%+** (currently 39%)
   - Write tests for 0% coverage files:
     - `generate_router.py` (110 lines) - Router skill generator
@@ -259,7 +263,7 @@ We aim for predictable releases:
 | Version | Focus | ETA | Status |
 |---------|-------|-----|--------|
 | v2.0.0 | PyPI Publication | 2025-11-11 | ✅ Released |
-| v2.1.0 | Test Coverage & Quality | Dec 2025 | 🚧 Planning |
+| v2.1.0 | Test Coverage & Quality | 2025-11-29 | ✅ Released |
 | v2.2.0 | Web Presence | Q1 2026 | 📋 Planned |
 | v2.3.0 | Developer Experience | Q2 2026 | 📋 Planned |
 | v3.0.0 | Major Evolution | 2026 | 💡 Conceptual |