Implement Text Input

gemini.md

@@ -366,14 +366,21 @@ The `?v=Date.now()` on imports handles this automatically on page load.
   - Move-to-XY numeric input with Go button
   - Board boundary + mechanism exclusion zone visualisation
   - Simulation badge (yellow) when BLE not connected
-- [x] Home section (`home.js`) — placeholder landing page, same visual style
+- [x] Board Control section (`board-control.js`):
+  - Interactive map with clickable spots
+  - Speed and Acceleration controls
+  - Background image selector with config memory
+- [x] Input Text section (`input-text.js`):
+  - Text input to spell words automatically
+  - Delay, Speed, and Acceleration sliders
+  - Position overlay marker on background
 - [x] Firmware (`src/main.cpp`) — AccelStepper + BLE command parser + position NOTIFY
 
 ---
 
 ## 10. What Remains (Planned Sections)
 
-The router currently only has two routes. These sections need to be created:
+The router currently only has three routes. These sections need to be created/expanded:
 
 ### `board-control` section (implemented)
 - Uses predefined background maps (SVG/PNG) with corresponding JSON config files specifying clickable coordinates in physical mm.
@@ -381,6 +388,11 @@ The router currently only has two routes. These sections need to be created:
 - Supports movement modes (e.g., Direct, Erratic, Random, Snaky).
 - Requires arm to be homed; homing state is persisted across sessions via `localStorage`.
 
+### `input-text` section (implemented)
+- Keyboard input that sequentially spells out words on the board.
+- Requires background `spots.json` to have `"hasAlphabet": true`.
+- Persisted Speed, Acceleration, and Delay settings.
+
 ### `sequence-editor` section (not started)
 - Record and replay a sequence of moves
 - Save/load sequences to localStorage