feat: pin and unpin commands

[lorenzocorallo]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: b20c1406-3871-43f6-ad4e-eafe8a4720ec

📥 Commits

Reviewing files that changed from the base of the PR and between 10f3071 and c2efd0f.

📒 Files selected for processing (1)

• src/commands/pin.ts

Walkthrough

A new pin command module is added and registered with the command collection. The implementation provides two group-scoped commands (pin and unpin) that allow administrators to pin and unpin messages with permission validation and error handling.

Changes

Cohort / File(s)	Summary
Pin Command Integration src/commands/index.ts	Import and register pin command in the commands collection.
Pin Command Implementation src/commands/pin.ts	New command module exporting pin and unpin commands. Validates replied message existence, checks bot administrator status and can_pin_messages capability, then calls Telegram API to pin/unpin with appropriate success/error feedback.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The pull request title 'feat: pin and unpin commands' directly and clearly describes the main change: adding two new commands (pin and unpin) for message pinning functionality.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/commands/pin.ts`:
- Around line 18-21: The early return that blocks handling replies when
repliedTo.from is missing should be removed; instead, allow processing based
solely on repliedTo.message_id (which is sufficient for the pin/unpin API
calls). Locate the checks that reference repliedTo.from (both the block at the
top and the similar block around lines 49-52) and either remove the return or
replace it with a non-fatal logger.warn that preserves flow, ensuring the /pin
and /unpin handlers use repliedTo.message_id to perform the Telegram API calls
even when repliedTo.from is undefined.
- Line 67: The confirmation message for the unpin flow incorrectly says "✅
Message pinned"; update the text used in the unpin handler so the success reply
reflects unpining. Locate the call using ephemeral(context.reply(fmt(({ n }) =>
n`✅ Message pinned`)), 10_000) in src/commands/pin.ts (the unpin branch/handler)
and change the message to indicate a successful unpin (e.g., "✅ Message
unpinned") so the ephemeral confirmation from context.reply/ephemeral/ fmt
matches the action.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 58b97d55-cbef-4346-80f1-b02ec1b7faaf

📥 Commits

Reviewing files that changed from the base of the PR and between 7bcc36f and 10f3071.

📒 Files selected for processing (2)

• src/commands/index.ts
• src/commands/pin.ts