Merge pull request #39 from saphid/family-comfort

Family and comfort: safe timers, casting, alerts and breaks

docs/family-comfort.md

@@ -0,0 +1,122 @@
+# Family and comfort
+
+Frame Control's Home tab has a **Family and comfort** card, on desktop and
+on iPhone. No third-party notification or parental-control app is needed.
+This is Frame Control code using Python, Steam and SteamVR already on the Frame.
+
+![Family and comfort controls in the desktop app](img/comfort-desktop.png)
+
+## Sessions
+
+Set a limit of 1–240 minutes, optional break and check-in intervals, then
+**Start session**. Break and check-in intervals of 0 turn those reminders off.
+**Cancel session** cancels the timer and monitoring without changing the game.
+Cancel before starting a session with different settings.
+
+The Frame shows a one-minute warning, then opens Steam Home in its dashboard.
+**Games stay running**: save and pause before the limit. Some games pause when
+the dashboard opens; others do not. There is no kill, power-off, Steam restart,
+account restriction or parental lock. The wearer can return to the game.
+
+**Documented implementation:** the timer is a single, opt-in Python worker in
+the Frame user's account. Desktop and iPhone share its state. It keeps going
+when the companion disconnects, closes or is suspended. It exits after
+completion or cancellation (normally within five seconds). Cancellation waits
+for any in-flight SteamVR action to finish within its timeout; it is not a boot
+service. A Frame reboot invalidates the session. Suspend counts toward the
+limit, using Linux's boot-time clock. If a warning was delayed by suspend or a
+SteamVR failure, Home waits until at least a full minute after a successful
+warning. A failed Home transition remains active and retries, with an error
+shown in the companion. A stale worker is reported as unverified enforcement.
+
+## Alerts and breaks
+
+During a session, battery, overheating and check-in alerts go to connected
+companions. Break reminders and session warnings also appear on the headset.
+
+- **Low battery:** 15% or below while discharging. One alert until charging or
+  recovery to 20%, so values around 15% do not produce repeated notifications.
+- **Overheating:** a thermal zone reaches its own kernel-reported hot/critical
+  trip, or the battery reports `Overheat`. Missing sensors mean unknown, not
+  safe. These are status alerts, not medical advice or an extra thermal governor.
+- **Check in:** an alert after the chosen number of active minutes.
+- **Breaks:** a SteamVR reminder and companion notification at the chosen interval.
+
+**Inferred:** SteamVR activity levels 1 and 2 are a useful proxy for use, not
+proof someone is wearing the headset. Inactive readings reset continuous use;
+missing readings add no time. Long gaps count at most 30 seconds. Breaks and
+check-ins are distinct from the elapsed-time session limit.
+
+Click **Enable / test notifications** on each companion. iOS asks for permission;
+macOS, Windows and Linux follow their notification settings. The page also shows
+recent events and errors. Keep Frame Control open and connected for companion
+alerts. **Phone alerts are local, not push notifications:** iOS suspension,
+force-quit or a lost SSH connection prevents live delivery. Old alerts are not
+replayed as a notification burst on reconnect. Headset warnings and the session
+limit continue without the phone. A physical iPhone's background delivery has
+not been verified and is not guaranteed.
+
+## Casting
+
+**Cast headset view** starts the existing headset Live view and requests full
+screen where supported. Show that screen to people in the room, or use the
+computer/phone's own screen mirroring. It creates no new stream transport,
+public URL or LAN server. iPhone uses the inline viewer if full screen is not
+available. The image includes private content visible to the wearer.
+
+## What is installed
+
+The shared authenticated `/api/comfort` endpoint copies three bundled Python
+files to `~/.cache/frame-control/comfort/<content-hash>/`. Session state and
+locks live in `~/.local/state/frame-control/comfort/`, with a private directory
+and 0600 state file. There is no network listener or system service. Cancel a
+session before removing these directories. The iPhone's normal server still
+exits on disconnect; the explicitly started comfort worker is the exception.
+
+## Verification
+
+**Verified 2026-09-28**, SteamOS 0.4.1, build `20260925.6191901`: shipped
+`/opt/steamvr/bin/linuxarm64/vrcmd --notify TEXT` reported success for a custom
+reminder. Steam's CDP `SteamUIStore.Navigate('/library/home')` and
+`SteamClient.OpenVR.VROverlay.ShowDashboard('valve.steam.gamepadui.main')`
+opened Home while the running app ID stayed unchanged. Prior page and dashboard
+visibility were restored. Kernel hot/critical trips and SteamVR activity were
+read from the real device. No temperature or battery fault was induced.
+
+**Verified locally:** deterministic fake-Frame tests cover late warnings,
+failed warnings/Home actions, cancellation, activity gaps, thresholds, duplicate
+suppression, reboot invalidation, shared session state and the exact Home
+JavaScript. `python3 -m unittest discover -s tests` runs them. The iOS Simulator
+build tests notification content and bounds. Physical iPhone delivery and
+wearer-perceived headset notification visibility remain unverified.
+
+**Verified end to end on the same Frame:** a two-minute session with no companion
+connection for 135 seconds emitted its warning, break and check-in, then opened
+Home. The running app ID was unchanged; the test restored the previous page and
+dashboard visibility and confirmed the worker exited. Casting through the Home
+shortcut decoded the existing headset stream at 30 fps.
+
+**Verified on the iOS 26.5 Simulator:** connected to the real Frame, approved the
+notification prompt, and saw the native Frame Control test banner. Seven iOS
+tests passed.
+
+![Native test notification in the iOS Simulator](img/comfort-notification-ios.png)
+
+Desktop and 390-pixel phone layouts had no horizontal overflow.
+On macOS the development Electron app's real notification attempt was denied
+(`UNErrorDomain` 1); the bridge now returns that failure instead of reporting
+success. Successful macOS/Windows/Linux notification display remains unverified.
+
+**Verified on the real Frame:** its naturally discharging 15% battery produced
+one low-battery event during a short session; the test then cancelled the
+session. Overheating alerts use fake sensor samples in tests: the shared
+headset was not deliberately overheated.
+
+**Verified 2026-09-29 on the same Frame:** a fresh one-minute session opened
+Home more than 60 seconds after the successful warning. The test restored the
+previous page and dashboard visibility. Local regression coverage now includes
+slow notification delivery, a total Home-action timeout, failed worker startup,
+unreadable saved state, malformed activity samples and notification UX: 173
+Python tests passed. Desktop and 390-pixel layouts were checked again; system
+notification-denial guidance stayed visible across polls. Initial event history
+did not replay notifications, and only the latest new event was announced.

docs/iphone.md

@@ -26,7 +26,10 @@ as its transport too), so the desktop and phone share one code path. Android
 display settings use `podman exec` into each Lepton container instead of adb,
 which the Frame doesn't have.
 
-Nothing is left running on the Frame after the phone disconnects; the copied
+The app server stops after the phone disconnects. An explicitly started
+[comfort session](family-comfort.md) keeps its timer and headset reminders running
+until the session ends or is cancelled; phone notifications require the app to
+remain connected and running. The copied
 files stay in `~/.cache/frame-control` (delete it any time).
 
 ## Pairing
@@ -108,3 +111,11 @@ running), a real sleep/restart/shut down on the Frame, and a physical iPhone.
 Debug builds have Simulator test hooks (`FRAME_TEST_HOST`, `FRAME_TEST_PAGE`,
 `FRAME_TEST_JS`, and the tunnel URL in the app's Caches folder); release builds
 don't.
+
+## Family and comfort
+
+The shared Home card sets session limits, breaks and check-ins, and offers
+**Cast headset view**. **Enable / test notifications** requests iOS notification
+permission and sends a local test. These are local notifications, not APNs push;
+iOS background suspension can interrupt phone alerts. The headset timer still
+runs. See [the behavior and verification limits](family-comfort.md).

docs/testing.md

@@ -170,3 +170,12 @@ assistant against an in-process HTTP endpoint with canned responses (no keys or
 external calls). `tests/e2e/test_agents.py` runs the MCP/HTTP/SSH path against the
 fake Frame for approved installs, clipboard and file transfer. Headset Chromium
 rendering and real screenshots still need a device; see [agent evidence](agents.md#evidence-and-limits).
+
+## Family and comfort
+
+`tests/test_comfort.py` uses an injected clock, fake headset sensor readings and
+actions, plus a Node fake of Steam's Home API. It covers warnings before Home,
+late/suspended sessions, cancellation, failed actions, duplicate alerts, reboot
+invalidation, per-zone thermal trips and shared on-headset state. The server
+guards reject invalid session settings before SSH. See
+[real-device evidence and limits](family-comfort.md#verification).