App manager: database names, data sizes, faster discovery

WQLSStore.h

@@ -0,0 +1,26 @@
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// Reads lsd's LaunchServices CSStore database (bundle names, display names,
+/// data-container mapping and .app bundle paths). The first call is blocking;
+/// run it on a background queue.
+BOOL WQLoadLaunchServicesDatabase(void);
+BOOL WQLSDisplayNamesLoaded(void);
+void WQLSResetMiss(void);
+
+/// Real display name for a bundle id (database, built-in Apple table, or
+/// parent-app fallback).
+NSString *_Nullable WQLSDisplayName(NSString *bundleID);
+
+/// Bundle id for an app/extension data container.
+NSString *_Nullable WQLSBundleIDForContainer(NSString *path);
+
+/// .app bundle path from the database (used for icons where readable).
+NSString *_Nullable WQLSBundlePathForIdentifier(NSString *bundleID);
+
+/// App and extension data-container paths listed by the database. Reading the
+/// store is much faster than enumerating every inode. Nil when unavailable.
+NSArray<NSString *> *_Nullable WQLSContainerPaths(void);
+
+NS_ASSUME_NONNULL_END