Enhance ImGuiTestHarness with dynamic test integration and end-to-end validation

- Updated README.md to reflect the completion of IT-01 and the transition to end-to-end validation phase.
- Introduced a new end-to-end test script (scripts/test_harness_e2e.sh) for validating all RPC methods of the ImGuiTestHarness gRPC service.
- Implemented dynamic test functionality in ImGuiTestHarnessService for Type, Wait, and Assert methods, utilizing ImGuiTestEngine.
- Enhanced error handling and response messages for better clarity during test execution.
- Updated existing methods to support dynamic test registration and execution, ensuring robust interaction with the GUI elements.

docs/z3ed/archive/README.md

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+# z3ed Documentation Archive
+
+This folder contains historical documentation that was useful during development but is no longer actively maintained. These files are kept for reference and to understand the project's evolution.
+
+## Archived Documentation
+
+### State Summaries (Historical Snapshots)
+- `STATE_SUMMARY_2025-10-01.md` - State before IT-01 Phase 3 completion
+- `STATE_SUMMARY_2025-10-02.md` - State after IT-01 Phase 3 completion
+- `PROGRESS_SUMMARY_2025-10-02.md` - Daily progress log for Oct 2, 2025
+
+### IT-01 (ImGuiTestHarness) Implementation Guides
+- `IT-01-grpc-evaluation.md` - Decision rationale for choosing gRPC over alternatives
+- `IT-01-getting-started-grpc.md` - Initial gRPC integration guide
+- `IT-01-PHASE2-IMPLEMENTATION-GUIDE.md` - Phase 2 detailed implementation
+- `IT-01-PHASE3-COMPLETE.md` - Phase 3 completion report with API learnings
+- `GRPC_TEST_SUCCESS.md` - Phase 1 test results and validation
+- `GRPC_TECHNICAL_NOTES.md` - Build issues and solutions
+
+### Project Management
+- `DOCUMENTATION_CONSOLIDATION_OCT2.md` - Notes on documentation cleanup process
+- `FILE_MODIFICATION_CHECKLIST.md` - Build system changes checklist
+- `DEPENDENCY_MANAGEMENT.md` - Cross-platform dependency strategy
+
+## Active Documentation
+
+For current documentation, see the parent directory:
+- `../README.md` - Main entry point
+- `../E6-z3ed-implementation-plan.md` - Master task tracker
+- `../NEXT_PRIORITIES_OCT2.md` - Current work breakdown
+- `../IT-01-QUICKSTART.md` - Test harness quick reference
+
+## Why Archive?
+
+These documents served their purpose during active development but:
+- Contained redundant information now consolidated in main docs
+- Were point-in-time snapshots superseded by later updates  
+- Detailed low-level implementation notes for completed phases
+- Decision documents for choices that are now finalized
+
+They remain available for:
+- Understanding historical context
+- Reviewing implementation decisions
+- Learning from the development process
+- Troubleshooting if issues arise with older code
+
+---
+
+**Archived**: October 2, 2025  
+**Status**: Reference Only - Not Actively Maintained