Sublime-style Build-n versioning + About box

Build n = commit count, baked at build time into a gitignored
version.gen.ts (postinstall + all build scripts regenerate it). About
lives in the macOS app menu and as a footer row in the options popover
(the cross-platform path), showing build, commit, date and engines.

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

package.json

@@ -3,13 +3,17 @@
 	"version": "0.1.0",
 	"private": true,
 	"type": "module",
-	"workspaces": ["ui"],
+	"workspaces": [
+		"ui"
+	],
 	"scripts": {
-		"dev": "bun scripts/dev.ts",
+		"dev": "bun scripts/gen-version.ts && bun scripts/dev.ts",
 		"dev:ui": "bun run --cwd ui start",
 		"build:ui": "bun run --cwd ui build",
-		"build": "bun run build:ui && bunx electrobun build",
-		"start": "bun run build:ui && bunx electrobun dev"
+		"build": "bun scripts/gen-version.ts && bun run build:ui && bunx electrobun build",
+		"start": "bun scripts/gen-version.ts && bun run build:ui && bunx electrobun dev",
+		"postinstall": "bun scripts/gen-version.ts",
+		"release": "bun scripts/release.ts"
 	},
 	"dependencies": {
 		"electrobun": "1.18.1",
@@ -22,5 +26,7 @@
 		"@types/ssh2": "^1.15.5",
 		"typescript": "~5.9.3"
 	},
-	"trustedDependencies": ["@parcel/watcher"]
+	"trustedDependencies": [
+		"@parcel/watcher"
+	]
 }