fix(shell): make slash command aliases work in shell UI

[azidancorp]

Related Issue

Resolve #1028 )

Description

Slash command aliases (e.g., /reset) were registered but failed to execute when typed in full. Tab completion worked, but pressing Enter resulted in "Unknown slash command".

Changes

1. Fix alias recognition (src/kimi_cli/ui/shell/__init__.py):

   • Changed initialization to iterate through all commands and register both primary names and aliases

2. Fix duplicate entries in /help (src/kimi_cli/ui/shell/__init__.py, src/kimi_cli/ui/shell/slash.py):

   • Added get_unique_slash_commands() method to return deduplicated command list
   • Updated help display and prompt session to use unique commands

Checklist

• [ x] I have read the CONTRIBUTING document.

• [ x] I have linked the related issue, if any.

• I have added tests that prove my fix is effective or that my feature works. (Tested manually)

• [ x] I have run make gen-changelog to update the changelog.

• [ x] I have run make gen-docs to update the user documentation.

  Related PR

  This fix is required for PR Feat/new alias for clear #1026 (adding /new alias) to work correctly. Recommend merging this first.

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

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