feat(telegram): pass reply and selected-quote context to agents

[Dvredin]

What

• decode Telegram selected quotes and reply captions as separate reference data
• append a bounded, escaped <telegram_reply_context> block only after directive/project/resume routing
• preserve the replied bot message when the same reply resumes an active, explicit, or persisted session
• strip only routing-only resume footer lines before serialising the remaining reply reference
• replace control/format characters and cap the complete serialised block, including wrappers, at 4,000 characters

Why

Replying with “what does this message say?” resumed the correct session but silently discarded the message being referenced. The agent therefore saw the follow-up without its referent. Reply data must remain separate from routing authority, while still reaching the agent after routing has completed.

Testing

• regression tests failed before the source fix on explicit and active-session resume paths
• rebased on current dev; isolated full suite: 3242 passed, 3 skipped; coverage 83.41%
• uv run ruff check src tests
• uv run ruff format --check --diff src tests
• uv lock --check
• docs prebuild + Zensical build
• Bandit
• wheel/sdist build, Twine check, and check-wheel-contents

Manual testing

• reproduced from a Telegram reply whose routing token arrived but whose referenced bot text did not reach the agent prompt
• verify the repaired prompt end-to-end after the combined owner-stack build is restarted

Related issues

No matching issue or duplicate PR was found in the current repository search.

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