docs: rename yt-offline → Catacomb across README, ROADMAP, guides, packaging

Prose + commands updated to the new name: brand reads "Catacomb", while
binary/path/package references are the lowercase `catacomb` (commands, deb/rpm
names, ~/.local/share/catacomb, catacomb.db, catacomb.desktop). Codeberg repo
URLs left pointing at the existing repo. Also folds in the pending doc edits
from earlier in the session.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Luna 2026-06-19 03:34:18 -07:00
parent 404362bfb0
commit 3f611849af
72 changed files with 1513 additions and 293 deletions

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17c149c21a91e639919901ef7504bbc3df87ef33 not-for-merge branch 'main' of https://codeberg.org/anassaeneroi/yt-offline
f3c136a0183cdd64a7adc71c4d4dcea24e3fefcf not-for-merge branch 'master' of https://codeberg.org/anassaeneroi/yt-offline