feat(config): implement unified configuration system

[amondnet]

Summary

Implement a unified configuration system replacing legacy config file names (opencode.json, dora.json) with a modern .please/config.json or .please/config.yml approach.

This PR centralizes configuration management across the format and LSP packages with:

• LSP Configuration: Enable/disable servers, custom root paths, and custom commands
• Shared Settings: Language preference (en/ko) and ignore patterns
• LSPManager Integration: Supports config via constructor or static fromProject() method
• Schema Validation: Zod-based schemas for type safety and documentation

Changes

• packages/format/src/config/loader.ts: Updated search paths to .please/config.(json|yml)
• packages/format/src/config/schema.ts: Added LspConfigSchema and unified Config schema
• packages/format/package.json: Added subpath export for config module
• packages/lsp/src/config.ts: New module with LSP config utilities (loadLspConfig, isServerEnabled, etc.)
• packages/lsp/src/index.ts: Integrated config loading in LSPManager
• packages/lsp/package.json: Added @pleaseai/code-format dependency
• CLAUDE.md: Updated documentation with configuration examples
• bun.lock: Updated dependencies

Example Configuration

```json
{
"language": "en",
"ignore_patterns": ["node_modules", "dist"],
"formatter": {
"biome": { "disabled": false },
"prettier": { "disabled": false }
},
"lsp": {
"typescript": { "enabled": true },
"prisma": { "enabled": true, "root": "./apps/api" }
}
}
```

Test plan

• Schema validation passes for new config structure
• Config loader finds .please/config.json and .please/config.yml
• LSP servers respect config enable/disable settings
• LSP servers use custom root paths when configured
• Backward compatibility: Missing config defaults to all servers enabled
• Documentation updated with configuration examples

[codecov]

Codecov Report

❌ Patch coverage is 18.51852% with 132 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.14%. Comparing base (02a1ae6) to head (482e3af).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/format/src/config/loader.ts	7.86%	82 Missing ⚠️
packages/lsp/src/config.ts	11.42%	31 Missing ⚠️
packages/lsp/src/index.ts	24.00%	19 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #26      +/-   ##
==========================================
- Coverage   33.09%   32.14%   -0.95%     
==========================================
  Files          13       14       +1     
  Lines        2798     2946     +148     
==========================================
+ Hits          926      947      +21     
- Misses       1872     1999     +127     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.