Add quick chat picker and hold-to-quit overlay control

docs/design.md

@@ -61,8 +61,10 @@ Recording…  00:04           [ Cancel ]
 - States: disabled, warming, ready, recording, transcribing, review, inserted,
   unavailable/error. Recording uses visible icon + text, not color alone.
 - Default Frame bindings: hold right X to speak, release to finish; B cancels,
-  A inserts with a trailing space, Y inserts pending text then sends Enter.
-  The alternate right-grip tap-then-hold gesture and left-grip double-tap Enter
+  A inserts with a trailing space, Y opens/cycles the quick-chat selection.
+  Overlay Submit or left-grip double-tap submits the selected literal + Enter,
+  or pending review + Enter, or Enter alone if neither is present.
+  The alternate right-grip tap-then-hold gesture and left-grip double-tap Submit
   remain available. All are remappable through the Bindings button's SteamVR editor.
   A click-to-start/stop overlay button provides
   a binding-independent alternative. Bound recording to 20 seconds; discard
@@ -71,7 +73,7 @@ Recording…  00:04           [ Cancel ]
   uninterrupted Xwayland target observation remains valid. **Review mode (default):**
   wait for Insert. Bring up review on uncertainty rather than silently losing a
   transcript or typing into a new target. Live Frame acceptance remains open.
-- Enter requires its own explicit control activation: insert pending review with
+- Submit requires its own explicit control activation: insert pending review with
   a trailing space, then queue Enter only if the text step succeeds. With no
   review, it queues only Enter. Never interpret "submit", "delete" or other speech
   as commands. Transcription completion never auto-submits.

docs/overlay.md

@@ -59,18 +59,23 @@ mount choices remain in Settings.
 
 The complete transcript preview is paginated by glyph width and four-line
 height; Previous and Next navigate it without changing the source transcript.
-Long status/detail messages show a prefix with a visible truncation marker.
+Status fits on the single status line; the old bottom detail label is gone.
 The footer remains available on all tabs: Record (labelled Stop while recording),
-Cancel, Insert, Enter, Quit. Record can retry after an error; it is disabled while
-warming/transcribing and until an existing review is inserted or discarded.
-Cancel can stop worker startup. Insert and Enter are disabled during recording
-and transcription. A pointer action requires
+Cancel, Insert, Submit, Hold Quit. Hold Quit needs a 900 ms press and release on
+that same button; its thin progress bar shows the hold. Record can retry after an
+error; it is disabled while warming/transcribing and until an existing review is
+inserted or discarded. Cancel can stop worker startup. Insert and Submit are
+disabled during recording and transcription. A pointer action requires
 a press/release on the same enabled control from the same cursor; focus loss,
-tab changes, action-state changes and relocation clear pending presses. Enter is *always* a separate
+tab changes, action-state changes and relocation clear pending presses. Submit is *always* a separate
 deliberate action, not inferred from text. Insert appends a trailing space (without
-doubling an existing trailing space). Enter inserts any pending review and then
-queues Enter; with no pending text it queues Enter only. A failed text step never
-proceeds to Enter. Recording never automatically submits. Auto insert, when
+doubling an existing trailing space). Submit inserts any pending review and then
+queues Enter; with no pending text it queues Enter only. Y opens the quick-chat
+list over the review area; each further Y press cycles its highlighted choice.
+Cancel closes the picker without discarding an existing review. Submit sends the
+selected text *without* a trailing space, then Enter. The choices are short
+single-line literals, not speech commands. A failed text step never proceeds to
+Enter. Recording never automatically submits. Auto insert, when
 explicitly enabled, can queue text + space after transcription only under the
 stable Xwayland focus guard described below.
 
@@ -108,6 +113,7 @@ installer creates one with defaults on first install. Copy the shipped
   "lock_layout": false,
   "clock_24h": false,
   "date_format": "mdy",
+  "quick_inputs": ["/new", "/questions", "/help"],
   "wrist": {"x": 0, "y": 0.18, "z": 0.089, "width": 0.30, "roll_degrees": 0},
   "theme": {
     "background": "#0c101b", "card": "#141c2b", "ink": "#e6f0f9",
@@ -118,7 +124,8 @@ installer creates one with defaults on first install. Copy the shipped
     "ptt": "/user/hand/right/input/x",
     "cancel": "/user/hand/right/input/b",
     "insert": "/user/hand/right/input/a",
-    "enter": "/user/hand/right/input/y",
+    "enter": "",
+    "quick_chat": "/user/hand/right/input/y",
     "left_grip": "/user/hand/left/input/grip",
     "right_grip": "/user/hand/right/input/grip"
   }
@@ -162,12 +169,19 @@ speech-driven Auto Insert, target coverage and headset acceptance remain
 unverified. The setting is preserved on upgrade
 and a failed preference write applies only to the current session.
 
+`quick_inputs` is an editable list of 1–6 nonempty, printable ASCII strings,
+each at most 64 characters. Edit the JSON file and restart; there is no headset
+text editor. Inputs are literal (not expanded or interpreted by FrameYap) and
+are sent to the current Gamescope focus, so check the destination before Submit.
 `buttons` maps named OpenVR actions (`left_grip`, `right_grip`, `ptt`, `cancel`,
-`insert`, `enter`) to Frame physical `/user/hand/{left|right}/input/NAME`
+`insert`, `enter`, `quick_chat`) to Frame physical `/user/hand/{left|right}/input/NAME`
 button paths. Omitted actions retain their bundled defaults; an empty string
 disables a mapping, including after an upgrade. The Frame defaults are right
-X = hold-to-talk, B = Cancel, A = Insert + space, Y = Insert + Enter. Existing
-configs with empty actions retain those disabled mappings; change them explicitly
+X = hold-to-talk, B = Cancel, A = Insert + space, Y = quick chat. Enter has no
+single-button mapping by default; the left grip double-tap still submits.
+An existing config mapping `enter` to right Y is migrated to quick chat in memory
+when `quick_chat` is absent; this does not overwrite custom mappings.
+Existing configs with empty actions retain those disabled mappings; change them explicitly
 or use SteamVR's binding editor. Paths must be distinct. Only the Frame binding is customized;
 SteamVR user overrides may still supersede it. On customized launches a generated
 action manifest and adjacent bindings are placed in `$XDG_CACHE_HOME/frameyap/bindings`