refactor: workspace restructure — contract package + pure domain ported, tests green

- bun workspaces: contract/ (Schemas = source of truth: config raw↔resolved,
  domain DTOs, HttpApi contract, API errors) + plugin/ + ui/
- pure domain moved src/{engine,art}→plugin/src/{domain,art}, types now
  imported from @rom-manager/contract and @punktfunk/plugin-kit/wire (the
  hand-copied wire.ts dies), loggers injected instead of module-global
- ui.* and devEntry dropped from the config shape (standalone server is
  gone; stale keys tolerated on decode, dropped by the next save)
- all 48 domain tests ported and green BEFORE any Effect wiring

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

package.json

@@ -1,53 +1,15 @@
 {
-	"name": "@punktfunk/plugin-rom-manager",
-	"version": "0.2.1",
-	"private": false,
+	"name": "rom-manager-workspace",
+	"private": true,
 	"type": "module",
-	"description": "Punktfunk plugin: scans ROM directories, maps them to emulators, and reconciles them into the host game library as a provider — with a console-hosted web UI.",
-	"license": "MIT OR Apache-2.0",
-	"homepage": "https://git.unom.io/unom/punktfunk-plugin-rom-manager",
-	"repository": {
-		"type": "git",
-		"url": "https://git.unom.io/unom/punktfunk-plugin-rom-manager.git"
-	},
-	"keywords": [
-		"punktfunk",
-		"plugin",
-		"roms",
-		"emulators",
-		"retroarch",
-		"game-streaming"
-	],
-	"main": "./dist/index.js",
-	"module": "./dist/index.js",
-	"types": "./dist/index.d.ts",
-	"bin": {
-		"punktfunk-plugin-rom-manager": "./dist/cli.js"
-	},
-	"files": [
-		"dist"
-	],
-	"publishConfig": {
-		"registry": "https://git.unom.io/api/packages/unom/npm/"
-	},
+	"workspaces": ["contract", "plugin", "ui"],
 	"scripts": {
-		"typecheck": "tsc --noEmit",
-		"test": "bun test",
-		"build": "tsc -p tsconfig.build.json",
-		"build:ui": "cd ui && bun install --silent && bun run build",
-		"build:all": "bun run build && bun run build:ui",
-		"sync": "bun src/cli.ts sync",
-		"scan": "bun src/cli.ts scan",
-		"detect": "bun src/cli.ts detect",
-		"prepublishOnly": "bun run build:all"
-	},
-	"dependencies": {
-		"@punktfunk/host": "^0.1.0",
-		"effect": "^4.0.0-beta.98"
+		"typecheck": "cd contract && bun run typecheck && cd ../plugin && bun run typecheck && cd ../ui && bun run typecheck",
+		"test": "cd plugin && bun test",
+		"build": "cd plugin && bun run build:all",
+		"check": "bunx biome check ."
 	},
 	"devDependencies": {
-		"@biomejs/biome": "^2.5.2",
-		"@types/bun": "^1.3.0",
-		"typescript": "^5.9.3"
+		"@biomejs/biome": "^2.5.2"
 	}
 }