Add a generated cover and a content-hashed version mark

The cover is a full-bleed mosaic of historical Bengali types filling the word
ব্যঞ্জণ, produced by tools/gen_cover_mosaic.py from plates/ and fonts/ alone
(build.sh remakes it if missing). It is static, so ebook readers can cache it.

The mark on the About this edition page is drawn by tools/gen_seal.py, seeded
from a SHA-256 of src/ (never the build's own outputs), so it changes exactly
when the transcription does. The colophon is shortened to name the cover
typefaces and the mark's mechanism, and drops the trailing ProQuest note.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
2026-09-29 14:36:18 +06:00
co-authored by Claude Sonnet 5.5
parent d48ce1f50c
commit 2ec880d1c4
8 changed files with 913 additions and 16 deletions
Binary file not shown.

After

Width:  |  Height:  |  Size: 1.2 MiB