rebrand better-clawd and ship initial npm-ready release

src/utils/envUtils.ts

@@ -1,16 +1,35 @@
 import memoize from 'lodash-es/memoize.js'
+import { existsSync } from 'fs'
 import { homedir } from 'os'
 import { join } from 'path'
+import {
+  getConfiguredProductConfigDir,
+  LEGACY_PRODUCT_CONFIG_DIRNAME,
+  PRODUCT_CONFIG_DIRNAME,
+} from '../constants/product.js'
 
 // Memoized: 150+ callers, many on hot paths. Keyed off CLAUDE_CONFIG_DIR so
 // tests that change the env var get a fresh value without explicit cache.clear.
 export const getClaudeConfigHomeDir = memoize(
   (): string => {
-    return (
-      process.env.CLAUDE_CONFIG_DIR ?? join(homedir(), '.claude')
-    ).normalize('NFC')
+    const configuredDir = getConfiguredProductConfigDir()
+    if (configuredDir) {
+      return configuredDir.normalize('NFC')
+    }
+
+    const betterClawdDir = join(homedir(), PRODUCT_CONFIG_DIRNAME)
+    const legacyClaudeDir = join(homedir(), LEGACY_PRODUCT_CONFIG_DIRNAME)
+
+    if (existsSync(betterClawdDir)) {
+      return betterClawdDir.normalize('NFC')
+    }
+    if (existsSync(legacyClaudeDir)) {
+      return legacyClaudeDir.normalize('NFC')
+    }
+
+    return betterClawdDir.normalize('NFC')
   },
-  () => process.env.CLAUDE_CONFIG_DIR,
+  () => getConfiguredProductConfigDir(),
 )
 
 export function getTeamsDir(): string {