Add changelog fragment generator and update poll parameter descriptions

.claude/commands/aiogram-api-changelog.md

@@ -0,0 +1,50 @@
+Generate a Bot API changelog fragment for aiogram.
+
+Arguments: $ARGUMENTS (format: `<issue_id> <changelog_url>`)
+
+## Steps
+
+1. Parse `$ARGUMENTS`: the first token is the issue/PR number (e.g. `1792`), the rest is the changelog URL (e.g. `https://core.telegram.org/bots/api-changelog#april-3-2026`).
+
+2. Fetch the changelog URL using WebFetch. Extract **all** changes for the Bot API version anchored by that URL: new methods, new types, new/changed fields, new parameters, renamed fields, and any other notable changes.
+
+3. Discover which aiogram modules were generated for the new symbols:
+   - New methods → search `aiogram/methods/<snake_case_name>.py` via Glob
+   - New types   → search `aiogram/types/<snake_case_name>.py` via Glob
+   - Confirm every referenced module exists before writing it into the RST.
+
+4. Create `CHANGES/<issue_id>.misc.rst` (overwrite if it exists) with the following RST structure, following the style used for previous Bot API updates in `CHANGES.rst`:
+
+```rst
+Updated to `Bot API X.Y <{url}>`_
+
+**{Section heading — e.g. "Feature Area"}**
+
+*New Methods:*
+
+- Added :class:`aiogram.methods.<module>.<ClassName>` method - <short description>
+
+*New Types:*
+
+- Added :class:`aiogram.types.<module>.<ClassName>` type - <short description>
+
+*New Fields:*
+
+- Added :code:`<field>` field to :class:`aiogram.types.<module>.<ClassName>` - <short description>
+
+*New Parameters for* :class:`aiogram.methods.<module>.<ClassName>`:
+
+- Added :code:`<param>` - <short description>
+```
+
+Rules for writing the RST:
+- Use `:class:`` for types and methods, `:meth:`` for shortcuts, `:code:`` for field/parameter names.
+- Module paths must be the full dotted path (e.g. `aiogram.types.poll_option.PollOption`), always verified against real files.
+- If a symbol has a shortcut method on a type, mention it with `:meth:`.
+- Group related changes under bold section headings (e.g. **Polls**, **Managed Bots**).
+- Within each section use italic sub-headings (*New Methods:*, *New Types:*, *New Fields:*, *New Parameters for ...:*) — omit a sub-heading if there is nothing to list under it.
+- Describe each item with a brief, user-facing sentence after the dash.
+- Do not add a trailing newline after the last bullet.
+- Do not include an issue/PR back-reference link (towncrier adds that automatically).
+
+5. Print the path of the created file and confirm it is done.

CHANGES/1792.misc.rst

@@ -43,6 +43,7 @@ Updated to `Bot API 9.6 <https://core.telegram.org/bots/api-changelog#april-3-20
 
 *New Parameters for* :class:`aiogram.methods.send_poll.SendPoll`:
 
+- Replaced :code:`correct_option_id` with :code:`correct_option_ids` - supports multiple correct answers for quiz polls
 - Added :code:`allows_revoting` - allows users to change their vote after submission
 - Added :code:`shuffle_options` - randomizes the order of poll options for each user
 - Added :code:`allow_adding_options` - allows users to add their own poll options