story-kit: create 332_story_bot_assign_command_to_assign_a_specific_agent_to_a_story

.story_kit/work/1_backlog/332_story_bot_assign_command_to_assign_a_specific_agent_to_a_story.md

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+---
+name: "Bot assign command to assign a specific agent to a story"
+---
+
+# Story 332: Bot assign command to assign a specific agent to a story
+
+## User Story
+
+As a project owner in a chat room, I want to type "{bot_name} assign {story_number} {agent_name}" to assign a specific agent to a story, so that I can control which agent works on which story from chat.
+
+## Acceptance Criteria
+
+- [ ] '{bot_name} assign {number} {agent}' assigns the specified agent to the story (e.g. 'timmy assign 315 coder-opus')
+- [ ] Stops any currently running agent on that story before assigning the new one
+- [ ] Updates the story's front matter with agent: {agent_name}
+- [ ] Starts the agent immediately
+- [ ] Returns confirmation with agent name and story title
+- [ ] Returns error if agent name is not valid or story not found
+- [ ] Registered in the command registry so it appears in help output
+- [ ] Handled at bot level without LLM invocation
+
+## Out of Scope
+
+- TBD