feat(cli): add completion command with bash/zsh/fish support (#1179)

[JeremyDev87]

Summary

• Add codingbuddy completion bash/zsh/fish command
• Dynamic plugin name completion
• Closes feat(cli): add completion command with bash/zsh/fish support #1179

Test plan

• Unit tests for completion data structure
• Unit tests for bash/zsh/fish script generation
• Integration test for CLI command routing

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Project	Deployment	Actions	Updated (UTC)
codingbuddy-landing	Ready	Preview, Comment	Apr 3, 2026 9:38am

[JeremyDev87]

Review: APPROVE

CI Status: PASS (25/25 checks)

Code Quality

• No any types, no unused imports, no dead code
• Clean architecture: single completion.ts with data, generators, dispatcher, handler
• Proper error handling in getPluginNames (missing file + parse error) and runCompletion (missing/unsupported shell)
• Shell scripts use runtime grep/sed for plugin names — no injection risk at generation time
• Good decision to consolidate bash/zsh/fish generators into single file vs issue's proposed 3 separate files

Spec Compliance (issue #1179)

• codingbuddy completion bash outputs valid bash completion script
• codingbuddy completion zsh outputs valid zsh completion script
• codingbuddy completion fish outputs valid fish completion script
• Dynamic plugin name completion for update/uninstall
• CLI routing + help text updated
• All tests pass

Test Coverage

• Data structures, dynamic plugin names (3 cases), bash/zsh/fish generators (4 each), dispatcher (4 cases), runCompletion (5 cases), CLI parsing (2 cases) = 30+ test cases

Issues Found

None.

Recommendation: APPROVE

[JeremyDev87]

✅ Review complete - review agent approved

CI Status: ALL PASS (25/25)

Review: APPROVE — 0 issues found

Checklist:

• bash/zsh/fish completion scripts generate correctly
• Dynamic plugin name completion works
• CLI routing wired up properly
• All tests pass