feat v1.25.0: three interaction modes — View / Plan / Devices (docs/UX-MODES.md)

- View (always the default): display + device interaction only; no dragging of
  icons/labels/openings; panning can start on an icon; clean header
- Plan: markup tools, openings editing (click-to-edit, drag along walls), label
  drag, space dialogs, fill palette; orange frame; icons hidden but labels visible
- Devices: icon drag only here, click opens the marker editor directly; add/
  show-all/reset/rules buttons; accent frame
- segmented mode control (admins only); removed: markup toggle button, view-mode
  opening drag/dblclick (v1.23.1), 'drag anywhere' (v1.9 reversed)
- README en+ru updated; TESTING.md Modes section; smoke_modes.mjs

custom_components/houseplan/manifest.json

@@ -16,5 +16,5 @@
   "issue_tracker": "https://github.com/Matysh/houseplan-card/issues",
   "requirements": [],
   "single_config_entry": true,
-  "version": "1.24.2"
+  "version": "1.25.0"
 }