Re-audit fixes: typing-indicator regression test, Deno proxy tests in CI

README: add table of contents

README: CI/Python/license badges, fix proxy paths, add Security and License sections

Move tests to tests/ and proxy to proxy/, update CI and docs paths

Docs: README module list reflects the split, AGENTS bot.py description updated

P2: split test_bot.py into 8 domain files + bot_test_helpers.py, fixture to conftest (AUD-A-001)

P3 docs: fix stale formatting comments, requirements-dev name, README test list, dockerignore bloat (AUD-C-002, AUD-N-002, AUD-L-001)

P0 batch 2: diag budget, HTML truncation at source, TTL caps, tokenless register_link, backup 14d, CI permissions (AUD-J-002, AUD-F-001, AUD-G-001, AUD-D-001, AUD-D-007, AUD-M-001)

25 bot languages for top-30 Telegram countries plus original-sound fallback chain

Per-chat bot language (/lang, 6 languages) plus single EN system prompt

Extract lumen_media.py (mime types, file-id parsing) from bot.py

Extract lumen_message_parse.py (links, triggers, media references) from bot.py

Rich Messages sending, review fixes, no-file note hygiene, persona tone

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Initial commit