feat: Implement air-gap functionality with timeline impact and evidence snapshot services

- Added AirgapTimelineImpact, AirgapTimelineImpactInput, and AirgapTimelineImpactResult records for managing air-gap bundle import impacts.
- Introduced EvidenceSnapshotRecord, EvidenceSnapshotLinkInput, and EvidenceSnapshotLinkResult records for linking findings to evidence snapshots.
- Created IEvidenceSnapshotRepository interface for managing evidence snapshot records.
- Developed StalenessValidationService to validate staleness and enforce freshness thresholds.
- Implemented AirgapTimelineService for emitting timeline events related to bundle imports.
- Added EvidenceSnapshotService for linking findings to evidence snapshots and verifying their validity.
- Introduced AirGapOptions for configuring air-gap staleness enforcement and thresholds.
- Added minimal jsPDF stub for offline/testing builds in the web application.
- Created TypeScript definitions for jsPDF to enhance type safety in the web application.

docs/modules/scanner/operations/entrytrace-cadence.md

@@ -14,7 +14,7 @@ EntryTrace heuristics must stay aligned with competitor techniques and new runti
 - **Outputs:**
   - Updated heuristics/diagnostics in `StellaOps.Scanner.EntryTrace` with deterministic fixtures.
   - Changelog entry in `src/Scanner/__Libraries/StellaOps.Scanner.EntryTrace/TASKS.md`.
-  - Sprint log updates under the active `SPRINT_0138_0000_0001_scanner_ruby_parity.md` when cadence items land.
+  - Sprint log updates under the active `SPRINT_0138_0001_0001_scanner_ruby_parity.md` when cadence items land.
 
 ## Workflow
 1) **Collect & triage signals**