docs(input): the V toggle, the harness switches, and the HUD line

Docs/controls.md documented the 0.1.0 bindings only, so the camera toggle added with
0.2.0 was undocumented for the player-facing set and the review switches were
undocumented everywhere. Adds the V row, a changes-since-0.1.0 note that first person
stays the default, and a table for -thirdperson / -walk / -qaselftest with the note
that the walking capture is driven per shot rather than by the switch.

The in-game HUD line gains 'V view' so the packaged build documents it too.

Docs/controls.md

@@ -1,4 +1,4 @@
-# Controls (`0.1.0` walkable demo)
+# Controls
 
 Keyboard and mouse. The same list is shown in-game, bottom-right of the frame (`AGigLineHUD`), and the packaged Linux build ships with these bindings.
 
@@ -12,6 +12,7 @@ Keyboard and mouse. The same list is shown in-game, bottom-right of the frame (`
 | Jump | `Space` |  |
 | Reset to start | `R` | Returns to the grounded spawn point |
 | Pause / release mouse | `Escape` | Second press resumes and recaptures the mouse |
+| Swap first / third person | `V` | First person is the default; the body is hidden in that view |
 
 ## Notes
 
@@ -19,6 +20,22 @@ Keyboard and mouse. The same list is shown in-game, bottom-right of the frame (`
 - The mouse is captured on launch, so looking works without clicking first. `Escape` toggles the capture as part of pause.
 - Bindings are Enhanced Input actions in `/Game/Input` built by `Tools/ue_create_input_assets.py`; the mapping context is `IMC_Default`.
 
+## Changes since `0.1.0`
+
+- **`V` swaps first and third person** (`0.2.0`, `IA_ToggleCamera`). The shipped default view is still first person, as the owner decided for `0.1.0`; third person adds a collision-tested spring-arm camera and a visible, animated body. `Escape` still pauses and releases the mouse in either view.
+
+## Review and harness switches
+
+These are command-line switches for the screenshot pipeline and QA runs, not player controls. They exist so a capture is reproducible rather than dependent on a human pressing keys at the right moment.
+
+| Switch | Effect |
+| --- | --- |
+| `-thirdperson` | Starts the pawn in the third-person rig, so a capture shows the body without anyone pressing `V` |
+| `-walk` | Holds forward input from the first frame — what makes the stride shot possible |
+| `-qaselftest` | Runs the scripted walk / reset / pause / transect checks and quits |
+
+The walking shot is driven per shot rather than by the switch: the shot actor enables the walk only while a tracking (`ShotFollow`) camera is being captured, and returns the pawn to spawn afterwards, so the fixed-camera shots still find it in place.
+
 ## Testing input without a physical keyboard
 
 `Tools/input_test.py` injects OS-level keyboard/mouse events through a virtual `/dev/uinput` device (see `Tools/input_emulation.py`), e.g.:

Game/GigLine/Source/GigLine/GigLineHUD.h

@@ -34,7 +34,7 @@ public:
 	 * in-game"). Keep in sync with Docs/controls.md.
 	 */
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Controls")
-	FString ControlsLine = TEXT("WASD move  \u00B7  Mouse look  \u00B7  Space jump  \u00B7  R reset  \u00B7  Esc pause");
+	FString ControlsLine = TEXT("WASD move  \u00B7  Mouse look  \u00B7  Space jump  \u00B7  V view  \u00B7  R reset  \u00B7  Esc pause");
 
 	/** Licence line, including where the licence can be read. */
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Attribution")

TODO.md

@@ -28,7 +28,7 @@ Actionable task list for this project. This file is the single, central place fo
 - [x] Add third-person camera following the player body. Done 2026-11-09: `USpringArmComponent` + camera on the capsule, boom 340 cm, lag 8, and the body is the animated skeletal mesh with the skin material. Review shot 5 (`demo-third-person`, `Screenshots/README.md`) shows the rig; the shipped default view stays first person.
 - [x] Add first/third-person toggle. **V**, via `IA_ToggleCamera`; the toggle swaps the active camera and the body's visibility. `-thirdperson` on the command line starts in third person so the review is reproducible.
 - [x] Add camera collision to prevent clipping through geometry. The spring arm's collision test (`bDoCollisionTest`, probe 12 cm on `ECC_Camera`) shortens the boom instead of letting the camera pass through a wall. **Not yet exercised against a wall in a shot** — the spawn point has open space behind it, so this is implemented but unproven.
-- [ ] Document any input changes.
+- [x] Document any input changes. `Docs/controls.md` gains the **V** first/third-person toggle (first person stays the default), a "changes since 0.1.0" note, and a table of the review harness switches (`-thirdperson`, `-walk`, `-qaselftest`). The in-game HUD line now reads `WASD move · Mouse look · Space jump · V view · R reset · Esc pause`.
 
 ### Release checks