Add initial mobile app prototypes and staff payments feature

Introduces the first versions of client and staff mobile application prototypes, including platform-specific assets, screens, and configuration for Android, iOS, macOS, Linux, and Windows. Adds documentation, AI prompt guides, and a new staff payments feature module with repository, use cases, and presentation logic. Also includes generated localization files and supporting resources for both client and staff apps.

apps/mobile/apps/staff/ios/Flutter/ephemeral/flutter_lldb_helper.py

@@ -0,0 +1,32 @@
+#
+# Generated file, do not edit.
+#
+
+import lldb
+
+def handle_new_rx_page(frame: lldb.SBFrame, bp_loc, extra_args, intern_dict):
+    """Intercept NOTIFY_DEBUGGER_ABOUT_RX_PAGES and touch the pages."""
+    base = frame.register["x0"].GetValueAsAddress()
+    page_len = frame.register["x1"].GetValueAsUnsigned()
+
+    # Note: NOTIFY_DEBUGGER_ABOUT_RX_PAGES will check contents of the
+    # first page to see if handled it correctly. This makes diagnosing
+    # misconfiguration (e.g. missing breakpoint) easier.
+    data = bytearray(page_len)
+    data[0:8] = b'IHELPED!'
+
+    error = lldb.SBError()
+    frame.GetThread().GetProcess().WriteMemory(base, data, error)
+    if not error.Success():
+        print(f'Failed to write into {base}[+{page_len}]', error)
+        return
+
+def __lldb_init_module(debugger: lldb.SBDebugger, _):
+    target = debugger.GetDummyTarget()
+    # Caveat: must use BreakpointCreateByRegEx here and not
+    # BreakpointCreateByName. For some reasons callback function does not
+    # get carried over from dummy target for the later.
+    bp = target.BreakpointCreateByRegex("^NOTIFY_DEBUGGER_ABOUT_RX_PAGES$")
+    bp.SetScriptCallbackFunction('{}.handle_new_rx_page'.format(__name__))
+    bp.SetAutoContinue(True)
+    print("-- LLDB integration loaded --")

apps/mobile/apps/staff/ios/Flutter/ephemeral/flutter_lldbinit

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+#
+# Generated file, do not edit.
+#
+
+command script import --relative-to-command-file flutter_lldb_helper.py

apps/mobile/apps/staff/ios/Runner/GeneratedPluginRegistrant.h

@@ -0,0 +1,19 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GeneratedPluginRegistrant_h
+#define GeneratedPluginRegistrant_h
+
+#import <Flutter/Flutter.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface GeneratedPluginRegistrant : NSObject
++ (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry;
+@end
+
+NS_ASSUME_NONNULL_END
+#endif /* GeneratedPluginRegistrant_h */

apps/mobile/apps/staff/ios/Runner/GeneratedPluginRegistrant.m

@@ -0,0 +1,42 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#import "GeneratedPluginRegistrant.h"
+
+#if __has_include(<firebase_app_check/FLTFirebaseAppCheckPlugin.h>)
+#import <firebase_app_check/FLTFirebaseAppCheckPlugin.h>
+#else
+@import firebase_app_check;
+#endif
+
+#if __has_include(<firebase_auth/FLTFirebaseAuthPlugin.h>)
+#import <firebase_auth/FLTFirebaseAuthPlugin.h>
+#else
+@import firebase_auth;
+#endif
+
+#if __has_include(<firebase_core/FLTFirebaseCorePlugin.h>)
+#import <firebase_core/FLTFirebaseCorePlugin.h>
+#else
+@import firebase_core;
+#endif
+
+#if __has_include(<shared_preferences_foundation/SharedPreferencesPlugin.h>)
+#import <shared_preferences_foundation/SharedPreferencesPlugin.h>
+#else
+@import shared_preferences_foundation;
+#endif
+
+@implementation GeneratedPluginRegistrant
+
++ (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry {
+  [FLTFirebaseAppCheckPlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTFirebaseAppCheckPlugin"]];
+  [FLTFirebaseAuthPlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTFirebaseAuthPlugin"]];
+  [FLTFirebaseCorePlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTFirebaseCorePlugin"]];
+  [SharedPreferencesPlugin registerWithRegistrar:[registry registrarForPlugin:@"SharedPreferencesPlugin"]];
+}
+
+@end