chore: remove 1,152 lines of verified dead code (#874)

* chore(deps): remove unused dependencies

Removed @openauthjs/openauth, hono, open, and xdg-basedir - none are imported in src/

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

* chore(cleanup): remove unused agent prompts and tool files

Deleted:
- src/agents/build-prompt.ts (exports never imported)
- src/agents/plan-prompt.ts (exports never imported)
- src/tools/ast-grep/napi.ts (never imported)
- src/tools/interactive-bash/types.ts (never imported)

Verified by: LSP FindReferences + explore agents

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

* chore(hooks): remove unused comment-checker filters

Deleted entire filters/ directory:
- filters/bdd.ts
- filters/directive.ts
- filters/docstring.ts
- filters/shebang.ts
- filters/index.ts

Not used by main hook (cli.ts uses external binary instead)

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

* chore(hooks): remove unused comment-checker output and constants

Deleted:
- output/formatter.ts
- output/xml-builder.ts
- output/index.ts
- constants.ts

All 0 external imports - migrated to external binary

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

* chore(hooks): remove unused pruning subsystem

Deleted pruning subsystem (dependency order):
- pruning-purge-errors.ts
- pruning-storage.ts
- pruning-supersede.ts
- pruning-executor.ts

Not imported by main recovery hook

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

* chore(hooks): remove unused createBackgroundCompactionHook export

Removed export from index.ts - never imported in src/index.ts

Verified by: LSP FindReferences (only 2 refs: definition + barrel export)

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

---------

Co-authored-by: justsisyphus <sisyphus-dev-ai@users.noreply.github.com>
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

package.json

@@ -56,18 +56,14 @@
     "@clack/prompts": "^0.11.0",
     "@code-yeongyu/comment-checker": "^0.6.1",
     "@modelcontextprotocol/sdk": "^1.25.1",
-    "@openauthjs/openauth": "^0.4.3",
     "@opencode-ai/plugin": "^1.1.19",
     "@opencode-ai/sdk": "^1.1.19",
     "commander": "^14.0.2",
     "detect-libc": "^2.0.0",
-    "hono": "^4.10.4",
     "js-yaml": "^4.1.1",
     "jsonc-parser": "^3.3.1",
-    "open": "^11.0.0",
     "picocolors": "^1.1.1",
     "picomatch": "^4.0.2",
-    "xdg-basedir": "^5.1.0",
     "zod": "^4.1.8"
   },
   "devDependencies": {