Add PHP Analyzer Plugin and Composer Lock Data Handling

- Implemented the PhpAnalyzerPlugin to analyze PHP projects.
- Created ComposerLockData class to represent data from composer.lock files.
- Developed ComposerLockReader to load and parse composer.lock files asynchronously.
- Introduced ComposerPackage class to encapsulate package details.
- Added PhpPackage class to represent PHP packages with metadata and evidence.
- Implemented PhpPackageCollector to gather packages from ComposerLockData.
- Created PhpLanguageAnalyzer to perform analysis and emit results.
- Added capability signals for known PHP frameworks and CMS.
- Developed unit tests for the PHP language analyzer and its components.
- Included sample composer.lock and expected output for testing.
- Updated project files for the new PHP analyzer library and tests.

src/DevPortal/StellaOps.DevPortal.Site/TASKS.md

@@ -0,0 +1,12 @@
+# DevPortal Tasks · Sprint 0206.0001.0001
+
+Keep this file in sync with `docs/implplan/SPRINT_0206_0001_0001_devportal.md`.
+
+| Task ID | Status | Notes | Last Updated (UTC) |
+| --- | --- | --- | --- |
+| DEVPORT-62-001 | DOING | Select SSG, wire aggregate spec, nav/search scaffold. | 2025-11-22 |
+| DEVPORT-62-002 | TODO | Schema viewer, examples, copy-curl, version selector. | 2025-11-22 |
+| DEVPORT-63-001 | TODO | Try-It console against sandbox; token onboarding UX. | 2025-11-22 |
+| DEVPORT-63-002 | TODO | Embed SDK snippets/quick starts from tested examples. | 2025-11-22 |
+| DEVPORT-64-001 | TODO | Offline bundle target with specs + SDK archives; zero external assets. | 2025-11-22 |
+| DEVPORT-64-002 | TODO | Accessibility tests, link checker, performance budgets. | 2025-11-22 |