fix: fix Arma 3 log discovery and improve config editor UX

- Fix logfiles_router and thread_registry to resolve .rpt log files
  from Path(server["exe_path"]).parent/server/ instead of the languard
  data dir, which never contained log files — log list and live tail
  both now work correctly
- Rewrite get_ui_schema() in config_generator to cover all ~80 fields
  across all 5 sections (server/basic/profile/launch/rcon) with proper
  toggle/select/number/password/tag-list/hidden widgets and labels;
  missions field is hidden (managed by Missions tab)
- Add formatSelectDisplay() to ConfigEditor so select fields show
  descriptive text (e.g. "0 - Never") instead of raw numbers in view mode
- Add ToggleDisplay for boolean fields (Enabled/Disabled with indicator dot)
- Add section tab labels and descriptions to ConfigEditor
- Add MissionList UX hints and dynamic Add/In Rotation button labels
- Add "hidden" to FieldSchema widget union type
- Update API.md, ARCHITECTURE.md, CLAUDE.md, FRONTEND.md, MODULES.md,
  THREADING.md to document log path fix and schema coverage

backend/core/threads/thread_registry.py

@@ -159,18 +159,16 @@ class ThreadRegistry:
         game_type = server["game_type"]
         adapter = self._adapter_registry.get(game_type)
 
-        # Log path: read from config if present, else use adapter default
+        # Log path: RPT files live next to the server exe, not in the languard data dir
         log_path = None
         if adapter.has_capability("log_parser"):
             log_parser = adapter.get_log_parser()
-            # Try to resolve log path via the adapter's log file resolver
-            from core.utils.file_utils import get_server_dir
-            server_dir = get_server_dir(server_id)
-            if server_dir.exists():
-                resolver = log_parser.get_log_file_resolver(server_id)
-                resolved = resolver(server_dir)
-                if resolved is not None:
-                    log_path = str(resolved)
+            from pathlib import Path
+            exe_dir = Path(server["exe_path"]).parent
+            resolver = log_parser.get_log_file_resolver(server_id)
+            resolved = resolver(exe_dir)
+            if resolved is not None:
+                log_path = str(resolved)
 
         bundle: dict = {
             "log_tail": None,