Release SRTL Manager 0.1.2

[ramphex]

Summary

• enables configurable multi-worker execution without an arbitrary worker-count ceiling, while preserving atomic leases and exact resource-overlap safeguards
• allows independent copies, targeted rescans, and audits to run concurrently, with immutable job selections and frozen admission-time behavior
• resolves recurring legacy copy-reconciliation blockers, isolates per-job progress, and corrects library assignment and large-selection behavior
• adds health/readiness separation, terminal-history retention, query/index improvements, retry handling, and hardened development synchronization
• updates vulnerable transitive dependencies and the pinned Docker registry login action

Verification

• npm audit --audit-level=high
• npm run check
• npm run build
• docker build --check .
• docker build -t srtl-manager:0.1.2-local .
• git diff --check

Release

After this PR passes the protected branch checks and is merged, v0.1.2 will be published from the resulting main commit. The release workflow will build and scan linux/amd64 and linux/arm64 images, then publish both ghcr.io/ramphex/srtl-manager:0.1.2 and ghcr.io/ramphex/srtl-manager:latest.