Add Ruby language analyzer and related functionality

- Introduced global usings for Ruby analyzer.
- Implemented RubyLockData, RubyLockEntry, and RubyLockParser for handling Gemfile.lock files.
- Created RubyPackage and RubyPackageCollector to manage Ruby packages and vendor cache.
- Developed RubyAnalyzerPlugin and RubyLanguageAnalyzer for analyzing Ruby projects.
- Added tests for Ruby language analyzer with sample Gemfile.lock and expected output.
- Included necessary project files and references for the Ruby analyzer.
- Added third-party licenses for tree-sitter dependencies.

docs/modules/scanner/TASKS.md

@@ -8,13 +8,20 @@
 | SCANNER-DOCS-0002 | DONE (2025-11-02) | Docs Guild | Keep scanner benchmark comparisons (Trivy/Grype/Snyk) and deep-dive matrix current with source references. | Coordinate with docs/benchmarks owners |
 | SCANNER-DOCS-0003 | TODO | Docs Guild, Product Guild | Gather Windows/macOS analyzer demand signals and record findings in `docs/benchmarks/scanner/windows-macos-demand.md`. | Coordinate with Product Marketing & Sales enablement |
 | SCANNER-ENG-0008 | TODO | EntryTrace Guild, QA Guild | Maintain EntryTrace heuristic cadence per `docs/benchmarks/scanner/scanning-gaps-stella-misses-from-competitors.md`. | Include quarterly pattern review + explain trace updates |
-| SCANNER-ENG-0009 | TODO | Ruby Analyzer Guild | SCANNER-ANALYZERS-RUBY-28-001..012 | Deliver Ruby analyzer parity and observation pipeline per gap doc (lockfiles, runtime graph, policy signals). | Design complete; fixtures published; CLI/Offline docs updated. |
+| SCANNER-ENG-0009 | DOING (2025-11-02) | Ruby Analyzer Guild | SCANNER-ANALYZERS-RUBY-28-001..012 | Deliver Ruby analyzer parity and observation pipeline per gap doc (lockfiles, runtime graph, policy signals). | Design complete; fixtures published; CLI/Offline docs updated. |
 | SCANNER-ENG-0010 | TODO | PHP Analyzer Guild | SCANNER-ANALYZERS-PHP-27-001..012 | Ship PHP analyzer pipeline (composer lock, autoload graph, capability signals) to close comparison gaps. | Analyzer + policy integration merged; fixtures + docs aligned. |
 | SCANNER-ENG-0011 | TODO | Language Analyzer Guild | — | Scope Deno runtime analyzer (lockfile resolver, import graphs) based on competitor techniques. | Design doc approved; backlog split into analyzer/runtime work. |
 | SCANNER-ENG-0012 | TODO | Language Analyzer Guild | — | Evaluate Dart analyzer requirements (pubspec parsing, AOT artifacts) to restore parity. | Investigation summary + task split filed with Dart guild. |
 | SCANNER-ENG-0013 | TODO | Swift Analyzer Guild | — | Plan Swift Package Manager coverage (Package.resolved, xcframeworks, runtime hints) with policy hooks. | Design brief approved; backlog seeded with analyzer tasks. |
 | SCANNER-ENG-0014 | TODO | Runtime Guild, Zastava Guild | — | Align Kubernetes/VM target coverage roadmap between Scanner and Zastava per comparison findings. | Joint roadmap doc approved; cross-guild tasks opened. |
 | SCANNER-ENG-0015 | TODO | Export Center Guild, Scanner Guild | — | Document DSSE/Rekor operator enablement guidance and rollout levers surfaced in gap analysis. | Playbook drafted; Export Center backlog updated. |
+| SCANNER-ENG-0016 | DOING (2025-11-02) | Ruby Analyzer Guild (Lockfile Squad) | Implement `RubyLockCollector` and vendor cache ingestion per design §4.1–4.3. | Coordinate fixtures under `fixtures/lang/ruby/lockfiles`; target alpha by Sprint 21. |
+| SCANNER-ENG-0017 | TODO | Ruby Analyzer Guild (Runtime Squad) | Build runtime require/autoload graph builder with tree-sitter Ruby per design §4.4. | Deliver edges with reason codes and integrate EntryTrace hints. |
+| SCANNER-ENG-0018 | TODO | Ruby Analyzer Guild (Capability Squad) | Emit Ruby capability and framework surface signals as defined in design §4.5. | Policy predicates prototyped; capability records available in SBOM overlays. |
+| SCANNER-ENG-0019 | TODO | Ruby Analyzer Guild, CLI Guild | Ship Ruby CLI verbs (`stella ruby inspect|resolve`) and Offline Kit packaging per design §4.6. | CLI commands documented; offline manifest updated; e2e tests pass. |
+| SCANNER-LIC-0001 | DOING (2025-11-02) | Scanner Guild, Legal Guild | Vet tree-sitter Ruby licensing and Offline Kit packaging requirements. | SPDX review complete; packaging plan approved. |
+| SCANNER-POLICY-0001 | TODO | Policy Guild, Ruby Analyzer Guild | Define Policy Engine predicates for Ruby groups/capabilities and align lattice weights. | Policy schema merged; tests cover new predicates. |
+| SCANNER-CLI-0001 | TODO | CLI Guild, Ruby Analyzer Guild | Coordinate CLI UX/help text for new Ruby verbs and update CLI docs. | CLI help + docs updated; golden outputs recorded. |
 | SCANNER-ENG-0002 | TODO | Scanner Guild, CLI Guild | Design Node.js lockfile collector/CLI validator per `docs/benchmarks/scanner/scanning-gaps-stella-misses-from-competitors.md`. | Capture Surface & policy requirements before implementation |
 | SCANNER-ENG-0003 | TODO | Python Analyzer Guild, CLI Guild | Design Python lockfile/editable install parity checks per `docs/benchmarks/scanner/scanning-gaps-stella-misses-from-competitors.md`. | Include policy predicates & CLI story in design |
 | SCANNER-ENG-0004 | TODO | Java Analyzer Guild, CLI Guild | Design Java lockfile ingestion & validation per `docs/benchmarks/scanner/scanning-gaps-stella-misses-from-competitors.md`. | Cover Gradle/SBT collectors, CLI verb, policy hooks |