Add lifecycle details to snapshot findings

[yti93]

🤖 Draft PR opened by Youssef's AI agent.

Summary

• Add required finding.lifecycle_details metadata to snapshot findings.
• Populate lifecycle details from the existing VersionLifecycle data during drift detection.
• Document the snapshot wire shape and add detection/snapshot regression tests.

Test plan

• env GOCACHE=/private/tmp/version-guard-go-build GOMODCACHE=/private/tmp/version-guard-go-mod go test ./...

[yti93]

@bakayolo Docker Compose test completed and verified:

• Built and started the collector stack with Docker Compose.
• Used live Wiz credentials and the rds-mysql report ID.
• Triggered an rds-mysql scan through POST /scan.
• Collector fetched 36 live RDS MySQL rows from Wiz.
• Collector wrote the snapshot to MinIO.
• Snapshot had 36 rds-mysql findings.
• All 36 had lifecycle_details.
• No findings had the removed Recommendation field.

[codecov]

Codecov Report

❌ Patch coverage is 38.70968% with 19 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
pkg/types/lifecycle_details.go	0.00%	19 Missing ⚠️

Files with missing lines	Coverage Δ
pkg/snapshot/store.go	85.23% <ø> (ø)
pkg/types/resource.go	100.00% <ø> (ø)
pkg/workflow/detection/activities.go	88.59% <100.00%> (ø)
pkg/types/lifecycle_details.go	0.00% <0.00%> (ø)

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