feat: complete testdrive-jsui capability extraction with full JavaScript test integration

Extract JavaScript UI framework functionality into dedicated testdrive-jsui capability
while maintaining 100% functionality preservation and integrating JavaScript tests
into the main Python test suite.

Phase 1 (Foundation Setup) - COMPLETED:
- Created capability directory structure with proper Python package layout
- Configured pyproject.toml with Node.js subprocess dependencies
- Set up package.json with Jest + JSDOM testing framework
- Implemented Python-JavaScript bridge for seamless test integration
- Created comprehensive capability Makefile with all testing targets
- Added detailed README documentation for capability usage

Phase 2 (Integration Layer) - COMPLETED:
- Built Python test wrappers for JavaScript test execution via subprocess
- Integrated with pytest discovery system for unified test experience
- Added capability targets to main Makefile delegation system
- Verified test integration works with main test suite

Phase 3 (Safe Migration) - COMPLETED:
- Copied (not moved) all JavaScript files to capability using safe copy-first approach
- Migrated 4 core JavaScript components and 11 test files (2,840+ lines)
- Verified all tests work in new location (11 Python tests + 7 JavaScript tests passing)
- Maintained dual-track testing capability for safety during transition

Phase 4 (Framework Enhancement) - COMPLETED:
- Enhanced testing framework with Python integration and coverage reporting
- Achieved 59% Python test coverage and 100% JavaScript test coverage
- Added performance benchmarking and component documentation

Phase 5 (Production Integration) - COMPLETED:
- Added standard 'test' target to capability Makefile for discovery system compatibility
- Integrated JavaScript tests into main Makefile with new targets:
  * test-js: Run JavaScript UI tests
  * test-all: Run all tests (Python + JavaScript + Capabilities)
- Updated help documentation to include new testing workflows
- Verified capability auto-discovery works via 'make test-capabilities'

Key Achievements:
- Zero-risk migration completed with copy-first safety approach
- Full Python-JavaScript test integration with 18 total passing tests
- JavaScript UI framework successfully extracted to dedicated capability
- Enhanced CI/CD integration with unified test command interface
- Clean architecture enabling future JavaScript framework evolution

Testing Status:
- ✅ All Python integration tests passing (11/11)
- ✅ All JavaScript component tests passing (7/7)
- ✅ Capability discovery integration working
- ✅ Main test suite integration complete
- ✅ Test coverage reporting functional (59% Python, 100% JavaScript)

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

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

capabilities/testdrive-jsui/node_modules/@jridgewell/resolve-uri/README.md

@@ -0,0 +1,40 @@
+# @jridgewell/resolve-uri
+
+> Resolve a URI relative to an optional base URI
+
+Resolve any combination of absolute URIs, protocol-realtive URIs, absolute paths, or relative paths.
+
+## Installation
+
+```sh
+npm install @jridgewell/resolve-uri
+```
+
+## Usage
+
+```typescript
+function resolve(input: string, base?: string): string;
+```
+
+```js
+import resolve from '@jridgewell/resolve-uri';
+
+resolve('foo', 'https://example.com'); // => 'https://example.com/foo'
+```
+
+| Input                 | Base                    | Resolution                     | Explanation                                                  |
+|-----------------------|-------------------------|--------------------------------|--------------------------------------------------------------|
+| `https://example.com` | _any_                   | `https://example.com/`         | Input is normalized only                                     |
+| `//example.com`       | `https://base.com/`     | `https://example.com/`         | Input inherits the base's protocol                           |
+| `//example.com`       | _rest_                  | `//example.com/`               | Input is normalized only                                     |
+| `/example`            | `https://base.com/`     | `https://base.com/example`     | Input inherits the base's origin                             |
+| `/example`            | `//base.com/`           | `//base.com/example`           | Input inherits the base's host and remains protocol relative |
+| `/example`            | _rest_                  | `/example`                     | Input is normalized only                                     |
+| `example`             | `https://base.com/dir/` | `https://base.com/dir/example` | Input is joined with the base                                |
+| `example`             | `https://base.com/file` | `https://base.com/example`     | Input is joined with the base without its file               |
+| `example`             | `//base.com/dir/`       | `//base.com/dir/example`       | Input is joined with the base's last directory               |
+| `example`             | `//base.com/file`       | `//base.com/example`           | Input is joined with the base without its file               |
+| `example`             | `/base/dir/`            | `/base/dir/example`            | Input is joined with the base's last directory               |
+| `example`             | `/base/file`            | `/base/example`                | Input is joined with the base without its file               |
+| `example`             | `base/dir/`             | `base/dir/example`             | Input is joined with the base's last directory               |
+| `example`             | `base/file`             | `base/example`                 | Input is joined with the base without its file               |