feat: deterministic image composer - OG + square variants, branding, baked caption (v0.17.0) (#152)

Composer slots between provider bytes and sideload: corner-marked featured,
branded 1200x630 OG + 1080x1080 square with baked clamped caption, capability
ladder (Imagick -> resize-only -> pass-through, never blocks publish).
Alt-text bug fix (caption, not model name). Vendored brand PNGs + OFL Poppins.

QA: APPROVE-WITH-P2-NOTES @ 6f76df1 (qa-reviews/prautoblogger/2026-06-11-6f76df1.md)
CEO greenlight: 2026-06-11 in chat.

Agent-Session: cto-image-composer-merge-20260611
This commit is contained in:
peptiderepo
2026-06-11 15:27:48 +07:00
committed by GitHub
parent d559fc58ab
commit 6de8cf2031
26 changed files with 2424 additions and 128 deletions

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