feat(core,cli): normalized audit schema and core business logic

.changeset/normalized-audit-schema.md

@@ -0,0 +1,97 @@
+---
+"@effect-migrate/core": minor
+"@effect-migrate/cli": minor
+---
+
+Add normalized schema for 40-70% audit.json size reduction and move business logic to core
+
+**Breaking Changes:**
+
+1. **Schema version 0.1.0 → 0.2.0** (audit.json - no backwards compatibility)
+   - Replace `byFile`/`byRule` with deduplicated `rules[]`, `files[]`, `results[]` arrays
+   - Add index-based groupings in `groups` field for O(1) lookup
+   - Implement deterministic ordering (sorted rules/files) for reproducible output
+   - Add stable content-based keys for cross-checkpoint delta computation
+   - Compact range representation using tuples instead of objects
+   - Add separate `info` counter to FindingsSummary (previously counted as warnings)
+
+2. **CLI loaders removed** - business logic moved to @effect-migrate/core
+   - ❌ Removed `@effect-migrate/cli/loaders/config` - use `@effect-migrate/core` exports instead
+   - ❌ Removed `@effect-migrate/cli/loaders/presets` - use `PresetLoader` service instead
+
+**New @effect-migrate/core exports:**
+
+Config utilities:
+
+- `mergeConfig(defaults, userConfig)` - Merge preset defaults with user config
+- `deepMerge(target, source)` - Deep merge plain objects (arrays replaced, not concatenated)
+- `isPlainObject(value)` - Type guard for plain objects
+
+Preset loading:
+
+- `PresetLoader` - Context.Tag for preset loading service
+- `PresetLoaderService` - Service interface
+- `PresetLoaderNpmLive` - Default Layer for npm-based preset resolution
+- `PresetLoadError` - Tagged error for preset loading failures
+- `Preset` - Preset type (rules + optional defaults)
+- `LoadPresetsResult` - Result of loading multiple presets
+
+Rule construction:
+
+- `rulesFromConfig(config)` - Build rules from config (pattern + boundary)
+
+Schema enhancements:
+
+- Config now supports `presets?: string[]` field for preset names
+
+Normalizer utilities:
+
+- `normalizeResults(results, config, threads?)` - Convert to normalized schema
+- `expandResult(normalized)` - Convert back to flat format
+- `deriveResultKey(result)` - Generate stable content-based key
+
+**@effect-migrate/cli changes:**
+
+New workspace-aware preset resolution:
+
+- `PresetLoaderWorkspaceLive` - Layer that tries workspace path first, falls back to npm
+- Supports monorepo development with automatic workspace preset detection
+- Windows-compatible file URL handling with `pathToFileURL()`
+
+Refactored loaders:
+
+- `loadRulesAndConfig()` now orchestrates core services instead of implementing logic
+- Uses `Effect.catchTag("PresetLoadError")` for precise error handling
+- Reduced CLI code by ~1291 lines (60% reduction in loaders)
+
+**Build improvements:**
+
+- Implement TypeScript Project References (src/test separation) for proper type checking
+- Fix NodeNext module resolution (.js extension requirements)
+- Consolidate test organization (all tests in `test/` directories)
+- Fix barrel import violations (use direct imports from @effect/platform)
+- Remove duplicate utils folder (merged util/ into utils/)
+
+**Migration guide:**
+
+If you were importing from CLI loaders:
+
+```typescript
+// Before
+import { loadConfig } from "@effect-migrate/cli/loaders/config"
+import { loadPresets } from "@effect-migrate/cli/loaders/presets"
+
+// After
+import { loadConfig, PresetLoader } from "@effect-migrate/core"
+
+const config = yield * loadConfig(configPath)
+const loader = yield * PresetLoader
+const { rules, defaults } = yield * loader.loadPresets(config.presets ?? [])
+```
+
+**Test coverage:**
+
+- 50 new tests for core utilities (config merge, preset loading, rule builders)
+- 6 new tests for CLI workspace preset resolution
+- 40+ tests for normalized schema
+- Total: 308 tests passing

.changeset/update-readmes.md

@@ -0,0 +1,22 @@
+---
+"@effect-migrate/core": patch
+"@effect-migrate/cli": patch
+---
+
+Update all READMEs to reflect current architecture and published usage
+
+**Documentation improvements:**
+
+- Root README: Accurate CLI commands, output schemas (index.json, audit.json, metrics.json, threads.json), real rule examples, proper roadmap
+- CLI README: Complete options documentation (--strict, --log-level, --amp-out), troubleshooting guide, local development instructions
+- Core README: Comprehensive exported API documentation, service architecture, Layer patterns, real rule examples from preset-basic
+
+**Key updates:**
+
+- Reflect dogfooding status and unstable API warnings across all packages
+- Document complementary relationship with @effect/language-service
+- Add proper roadmap with planned features (SQLite, Polars, OpenTelemetry, MCP server, workflow orchestration)
+- User-focused: Published npm usage as primary, local development as secondary
+- Real examples from actual codebase (patterns.ts, boundaries.ts)
+
+Resolves #24

.github/workflows/ci.yml

@@ -44,6 +44,9 @@ jobs:
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
+      - name: Build
+        run: pnpm build
+
       - name: Build TypeScript declarations
         run: pnpm build:types
 
@@ -53,8 +56,5 @@ jobs:
       - name: Lint
         run: pnpm lint
 
-      - name: Build
-        run: pnpm build
-
       - name: Test
         run: pnpm test:ci