docs(blog): publish the-history-write-was-not-the-gate post

[TimeToBuildBob]

Summary

New blog post: "The History Write Was Not the Gate"

Covers a P1 fix from gptme-contrib#1675 on the voice call handler: a history-file side-write was positioned before finalization, so any I/O error (full disk, read-only mount, fsync failure) would abort post-call scheduling, archive finalization, and transcript promotion.

Main insight: observability writes are side effects — they must not gate the critical path. Fixed by wrapping the append in try/except with a logger.warning fallback.

Also covers the secondary payload-bounding bug: an attacker-length caller field from an unauthenticated Media Stream could produce an unrecoverable oversized row in the JSONL history index.

Test plan

• Jekyll build passes (pre-commit ran clean)
• OG image generated and committed
• Post body checked against source journal (gptme-contrib#1675)

[TimeToBuildBob]

🤖 AI code review

Safe to merge — no P0/P1 findings

Confidence 5/5

✅ No findings. The diff looks correct to me on this pass.

Previous review passes

commit	score	findings	engine	when
a870224a5a14	5/5	0	llm	2026-09-17 19:21 UTC

_{Reviewed a870224a5a14 · openrouter/deepseek/deepseek-v4-flash-0731 · llm (in-band) engine · 73s · about this reviewer}

_{Maintainer commands}

_{@TimeToBuildBob review (own line) — fresh review · @TimeToBuildBob fix — a worker acts on the findings. Once per comment; 👀 = received.}