chore: initialize recovered claude workspace

src/utils/cachePaths.ts

@@ -0,0 +1,38 @@
+import envPaths from 'env-paths'
+import { join } from 'path'
+import { getFsImplementation } from './fsOperations.js'
+import { djb2Hash } from './hash.js'
+
+const paths = envPaths('claude-cli')
+
+// Local sanitizePath using djb2Hash — NOT the shared version from
+// sessionStoragePortable.ts which uses Bun.hash (wyhash) when available.
+// Cache directory names must remain stable across upgrades so existing cache
+// data (error logs, MCP logs) is not orphaned.
+const MAX_SANITIZED_LENGTH = 200
+function sanitizePath(name: string): string {
+  const sanitized = name.replace(/[^a-zA-Z0-9]/g, '-')
+  if (sanitized.length <= MAX_SANITIZED_LENGTH) {
+    return sanitized
+  }
+  return `${sanitized.slice(0, MAX_SANITIZED_LENGTH)}-${Math.abs(djb2Hash(name)).toString(36)}`
+}
+
+function getProjectDir(cwd: string): string {
+  return sanitizePath(cwd)
+}
+
+export const CACHE_PATHS = {
+  baseLogs: () => join(paths.cache, getProjectDir(getFsImplementation().cwd())),
+  errors: () =>
+    join(paths.cache, getProjectDir(getFsImplementation().cwd()), 'errors'),
+  messages: () =>
+    join(paths.cache, getProjectDir(getFsImplementation().cwd()), 'messages'),
+  mcpLogs: (serverName: string) =>
+    join(
+      paths.cache,
+      getProjectDir(getFsImplementation().cwd()),
+      // Sanitize server name for Windows compatibility (colons are reserved for drive letters)
+      `mcp-logs-${sanitizePath(serverName)}`,
+    ),
+}