Greptile Summary

This PR fixes a session key namespacing bug in the Telegram native slash command handler. The SessionKey used when recording inbound session metadata for slash commands was previously telegram:slash:<id> — missing the agent:<agentId>: prefix that the rest of the session key scheme requires. The fix adds this prefix (agent:${route.agentId}:telegram:slash:${senderId || chatId}), eliminating potential key collisions with agent-scoped conversational sessions. The accompanying test is tightened from a loose toBeDefined() to an exact string assertion, which is a good improvement.

Key changes:

• src/telegram/bot-native-commands.ts: SessionKey for native slash command context now carries the full agent:<agentId>:telegram:slash:<id> namespace, consistent with how AccountId, agentId, and session store writes are already scoped.
• src/telegram/bot-native-commands.session-meta.test.ts: Assertion upgraded from toBeDefined() to an exact match on "agent:main:telegram:slash:200".

Observation (no action required): Several other test files (abort.test.ts, commands.test.ts, get-reply.reset-hooks-fallback.test.ts, reply.triggers…e2e.test.ts, pi-embedded-runner.resolvesessionagentids.test.ts) still reference the legacy bare telegram:slash:<id> format. These tests construct their own payloads independently and test downstream behavior rather than key generation, so they are not functionally broken by this change. They are worth updating in a follow-up for consistency.

Confidence Score: 5/5

• This PR is safe to merge — it is a minimal, targeted fix that corrects a namespace omission with no side effects on other production paths.
• The change is a single-line fix to a string template, the surrounding session metadata and dispatch code already used the correct agent-scoped values, the test improvement is precise and correct, and no downstream production code parses or hard-codes the old bare telegram:slash: key format.
• No files require special attention.

_{Last reviewed commit: 2f556c7}

Landed via temp rebase onto main.

• Gate: pnpm check; pnpm build; pnpm exec vitest run src/telegram/bot-native-commands.session-meta.test.ts --config vitest.channels.config.ts
• Land commit: 17a527d
• Merge commit: bfc36cc

Thanks @0xtangping!