feat: add repository risk hotspot analysis

[iKwesi]

Summary

• add deterministic repository risk analysis providers for complexity, coverage, and architecture uncertainty
• surface ordered hotspot scoring in inspect results and the human-readable inspect report
• cover the new scoring and inspect integration with focused tests

Closes #51

[Copilot]

Pull request overview

Adds deterministic repository risk hotspot analysis (complexity, coverage gaps, and architectural uncertainty) and surfaces the ordered hotspot scoring through inspect results and the human-readable inspect report, with new/updated tests covering the integration.

Changes:

• Introduce analyzeRepositoryRisk with provider scoring and deterministic hotspot ranking.
• Extend runInspect / InspectResult to include risk_analysis and render a “Risk Hotspots” section in the inspect report.
• Add/update Vitest coverage for risk scoring and inspect integration.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/diagnostics/risk-analysis.test.ts	New tests asserting deterministic provider definitions and hotspot scoring output.
tests/diagnostics/inspect.test.ts	Updates inspect integration test to include tests folder + risk hotspot assertions in the report.
tests/cli/inspect-command.test.ts	Updates CLI inspect test fixture to include required risk_analysis field.
src/core/diagnostics/riskAnalysis.ts	New risk analysis module implementing providers, scoring, and hotspot ranking logic.
src/core/diagnostics/inspect.ts	Wires risk analysis into inspect orchestration and prints hotspots in formatInspectReport.

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