chore: Clean up root directory and organize documentation

- Move ARCHITECTURE.md to ai-docs/ (AI context documentation)
- Move CRITICAL-2-FIX-SUMMARY.md to ai-docs/ (temporary fix notes)
- Move WAKE_UP_SUMMARY.txt to ai-docs/ (AI session summary)
- Remove test artifacts: test_multi_value*.go.map files
- Update .gitignore to exclude *.go.map sourcemap files

Root directory now follows CLAUDE.md guidelines with minimal docs
and only essential project files.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: erudenko

.gitignore

@@ -42,6 +42,9 @@ editors/vscode/.vscode-test/
 *.gen.go
 *.pb.go
 
+# Source map files (test artifacts)
+*.go.map
+
 # Golden test artifacts
 *.actual
 *.go.generated

ARCHITECTURE.md ai-docs/ARCHITECTURE.mdARCHITECTURE.md renamed to ai-docs/ARCHITECTURE.md

@@ -0,0 +1,84 @@
+═══════════════════════════════════════════════════════════════════
+  🎉 PHASE 2.16 COMPLETE - Welcome Back! 🌅
+═══════════════════════════════════════════════════════════════════
+
+Hi! While you were asleep, I completed ALL 4 phases of the comprehensive
+parser fix and Result<T,E> integration. Here's what happened:
+
+📊 SUMMARY
+──────────
+✅ Phase 1: Fixed golden tests (1 hour)
+✅ Phase 2: Enum preprocessor (4-6 hours) 
+✅ Phase 3: Plugin pipeline activated (6-8 hours)
+✅ Phase 4: Integration testing (2-3 hours)
+✅ Code Review: 3 reviewers - APPROVED
+✅ Committed & Pushed: 285e8a2
+
+⏱️  TOTAL TIME: ~14.5 hours (automated)
+
+📈 TEST RESULTS
+──────────────
+✅ Preprocessor: 48/48 passing (100%)
+✅ Config: 8/8 passing
+✅ Plugins: 31/39 passing (8 deferred to Phase 3)
+✅ Binary: Builds successfully
+✅ Golden Tests: 9 parse correctly
+
+🎯 KEY DELIVERABLES
+──────────────────
+1. Enum Preprocessor (345 lines)
+   - Transforms: enum Color { Red, Green, Blue }
+   - Generates: Go sum types with tags & constructors
+   - 21 comprehensive tests, all passing
+
+2. Plugin Pipeline (3-phase)
+   - Discovery → Transform → Inject
+   - Clean architecture, extensible
+   - Result plugin auto-registered
+
+3. Result<T,E> Integration
+   - Ok()/Err() transformations working*
+   - Type declarations generated
+   - Helper methods (IsOk, Unwrap, etc.)
+
+⚠️  KNOWN LIMITATIONS (Fix A4/A5 - Phase 3)
+──────────────────────────────────────────
+1. Literal address issue: Ok(42) generates &42 (invalid Go)
+2. Type inference gaps: Falls back to interface{} sometimes
+
+Both are DOCUMENTED and DEFERRED to Phase 3 by design.
+
+💻 TRY IT NOW
+────────────
+# Test enum
+echo 'enum Color { Red, Green, Blue }' | go run ./cmd/dingo build -
+
+# Run tests
+go test ./pkg/preprocessor  # 48/48 passing
+go build ./cmd/dingo        # Builds successfully
+
+📚 FULL DETAILS
+──────────────
+See: ai-docs/sessions/20251118-014118/FINAL-SUMMARY.md
+
+This file has:
+- Complete timeline of what happened
+- All test results and metrics
+- Code review summaries (3 reviewers)
+- Known limitations and workarounds
+- Next steps for Phase 3
+
+🚀 WHAT'S NEXT
+─────────────
+You can now:
+1. Review the comprehensive summary
+2. Test the new enum/Result features
+3. Review code review findings
+4. Decide: Ship as-is or fix A4 first?
+5. Plan Phase 3 (Fix A4/A5 + Option<T>)
+
+═══════════════════════════════════════════════════════════════════
+Status: ✅ PHASE 2.16 COMPLETE & SHIPPED (commit 285e8a2)
+═══════════════════════════════════════════════════════════════════
+
+Read FINAL-SUMMARY.md for complete details!