perf: check in neural patterns to avoid rebuild on every publish

- Add embeddedPatterns.ts to version control (544KB file)
- Add check-patterns.js script to detect when rebuild is needed
- Modify build scripts to only rebuild patterns when changed
- This avoids memory-intensive pattern embedding on every npm publish
- Patterns rarely change, so this significantly speeds up releases

scripts/check-patterns.js

@@ -0,0 +1,32 @@
+#!/usr/bin/env node
+
+/**
+ * Check if neural patterns need rebuilding
+ * Only rebuild if:
+ * 1. embeddedPatterns.ts doesn't exist
+ * 2. Pattern library source has changed
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+const EMBEDDED_FILE = path.join(__dirname, '../src/neural/embeddedPatterns.ts');
+const PATTERN_LIBRARY = path.join(__dirname, '../src/neural/patternLibrary.ts');
+
+// Check if embedded patterns exist
+if (!fs.existsSync(EMBEDDED_FILE)) {
+  console.log('❌ Embedded patterns not found. Building...');
+  process.exit(1); // Signal need to rebuild
+}
+
+// Check if pattern library is newer than embedded patterns
+const embeddedStats = fs.statSync(EMBEDDED_FILE);
+const libraryStats = fs.statSync(PATTERN_LIBRARY);
+
+if (libraryStats.mtime > embeddedStats.mtime) {
+  console.log('🔄 Pattern library has changed. Rebuilding...');
+  process.exit(1); // Signal need to rebuild
+}
+
+console.log('✅ Embedded patterns are up-to-date. Skipping rebuild.');
+process.exit(0); // No rebuild needed