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/jest-docblock/LICENSE

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+MIT License
+
+Copyright (c) Meta Platforms, Inc. and affiliates.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

capabilities/testdrive-jsui/node_modules/jest-docblock/README.md

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+# jest-docblock
+
+`jest-docblock` is a package that can extract and parse a specially-formatted comment called a "docblock" at the top of a file.
+
+A docblock looks like this:
+
+```js
+/**
+ * Stuff goes here!
+ */
+```
+
+Docblocks can contain pragmas, which are words prefixed by `@`:
+
+```js
+/**
+ * Pragma incoming!
+ *
+ * @flow
+ */
+```
+
+Pragmas can also take arguments:
+
+```js
+/**
+ * Check this out:
+ *
+ * @myPragma it is so cool
+ */
+```
+
+`jest-docblock` can:
+
+- extract the docblock from some code as a string
+- parse a docblock string's pragmas into an object
+- print an object and some comments back to a string
+
+## Installation
+
+```sh
+# with yarn
+$ yarn add jest-docblock
+# with npm
+$ npm install jest-docblock
+```
+
+## Usage
+
+```js
+const code = `
+/**
+ * Everything is awesome!
+ *
+ * @everything is:awesome
+ * @flow
+ */
+
+ export const everything = Object.create(null);
+ export default function isAwesome(something) {
+   return something === everything;
+ }
+`;
+
+const {
+  extract,
+  strip,
+  parse,
+  parseWithComments,
+  print,
+} = require('jest-docblock');
+
+const docblock = extract(code);
+console.log(docblock); // "/**\n * Everything is awesome!\n * \n * @everything is:awesome\n * @flow\n */"
+
+const stripped = strip(code);
+console.log(stripped); // "export const everything = Object.create(null);\n export default function isAwesome(something) {\n return something === everything;\n }"
+
+const pragmas = parse(docblock);
+console.log(pragmas); // { everything: "is:awesome", flow: "" }
+
+const parsed = parseWithComments(docblock);
+console.log(parsed); // { comments: "Everything is awesome!", pragmas: { everything: "is:awesome", flow: "" } }
+
+console.log(print({pragmas, comments: 'hi!'})); // /**\n * hi!\n *\n * @everything is:awesome\n * @flow\n */;
+```
+
+## API Documentation
+
+### `extract(contents: string): string`
+
+Extracts a docblock from some file contents. Returns the docblock contained in `contents`. If `contents` did not contain a docblock, it will return the empty string (`""`).
+
+### `strip(contents: string): string`
+
+Strips the top docblock from a file and return the result. If a file does not have a docblock at the top, then return the file unchanged.
+
+### `parse(docblock: string): {[key: string]: string | string[] }`
+
+Parses the pragmas in a docblock string into an object whose keys are the pragma tags and whose values are the arguments to those pragmas.
+
+### `parseWithComments(docblock: string): { comments: string, pragmas: {[key: string]: string | string[]} }`
+
+Similar to `parse` except this method also returns the comments from the docblock. Useful when used with `print()`.
+
+### `print({ comments?: string, pragmas?: {[key: string]: string | string[]} }): string`
+
+Prints an object of key-value pairs back into a docblock. If `comments` are provided, they will be positioned on the top of the docblock.

capabilities/testdrive-jsui/node_modules/jest-docblock/package.json

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+{
+  "name": "jest-docblock",
+  "version": "29.7.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jestjs/jest.git",
+    "directory": "packages/jest-docblock"
+  },
+  "license": "MIT",
+  "main": "./build/index.js",
+  "types": "./build/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./build/index.d.ts",
+      "default": "./build/index.js"
+    },
+    "./package.json": "./package.json"
+  },
+  "dependencies": {
+    "detect-newline": "^3.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "*"
+  },
+  "engines": {
+    "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "gitHead": "4e56991693da7cd4c3730dc3579a1dd1403ee630"
+}