Record the v3.14.2 audit entry

[amrali-eg]

Summary

• Adds the v3.14.2 entry to docs/SAFETY-AUDIT.md, per the checklist's own rule that a release's own audit record is committed after its tag, never before.
• No corpus measurement — not required (no detection/conversion-policy change).
• Both published executables (framework-dependent and self-contained) verified to reproduce byte-for-byte from a clean checkout of the tag.
• Corrects a miscounted streak: the v3.14.1 entry says signing-unconfigured is the "fifth" release running, but recounting from v3.11.2 (the first release to carry the limit) gives seven, not five — v3.14.1's own count repeated v3.14.0's instead of incrementing it. Left as written there; the corrected count is stated here.
• Notes the accessibility spot check is still only partially attempted (100% scaling only) — sixth release without a complete one.

Test plan

• Docs-only change to an append-only historical record; no application rebuild needed.
• All figures (test count, hashes, commit) were gathered and verified directly this session before writing.

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