Reorder milestones so Config Persistence comes before Frame/Wake/Sleep

Previously M5 (Wake/Sleep + idle timer) and M4 (Frame) implicitly
depended on NVS values (orientation, idle_timeout_ms) that did not
exist until M6 (Config Persistence). Moving Config to M4 lets the
downstream endpoints read their parameters from NVS instead of
working around hardcoded defaults.

New order:
  M1 Board Bring-Up
  M2 HTTP + mDNS
  M3 Display Bring-Up
  M4 Config Persistence  (was M6)
  M5 JPEG Frame Push     (was M4)
  M6 Wake/Sleep/Brightness (was M5)
  M7 Touch Callback
  M8 Local Screens + BOOT button
  M9 Live Stream (/stream)

M4 now also validates orientation and idle_timeout_ms per spec,
applies orientation immediately (mDNS TXT + /health reflect it), and
establishes the brightness default (80) on first boot. M5's test
image is 480x800 by default (portrait); switch to 800x480 if /config
sets landscape. M6's idle timer reads idle_timeout_ms from NVS.

1 files changed, 30 insertions, 23 deletions

diff --git a/Scrypted-Viewport-v2-Claude-Code-Implementation-Guide.md b/Scrypted-Viewport-v2-Claude-Code-Implementation-Guide.md
index 69f53ac..ce6c178 100644
--- a/Scrypted-Viewport-v2-Claude-Code-Implementation-Guide.md
+++ b/Scrypted-Viewport-v2-Claude-Code-Implementation-Guide.md
@@ -781,29 +781,48 @@ Acceptance:
 Screen displays deterministic test pattern.
 ```
 
-### Milestone 4: JPEG Frame Push
+### Milestone 4: Config Persistence
 
-- Implement `/frame`.
-- Receive JPEG body.
-- Decode into framebuffer.
-- Display full frame.
+Done before any state-bearing endpoints so they can read values from NVS instead of working around hardcoded defaults.
+
+- Implement `/config` (display, callback, idle_timeout_ms, orientation).
+- Validate per spec (non-empty display, http callback, idle_timeout = 0 or ≥ 5000, orientation in {portrait, landscape}).
+- Persist all fields to NVS atomically.
+- Apply orientation immediately (mDNS TXT and `/health` reflect it).
+- Brightness defaults to 80 on first boot, persisted.
 
 Acceptance:
 
 ```bash
+curl -X POST -H "Content-Type: application/json" \
+  -d '{"display":"mudroom","callback":"http://host/cb","orientation":"landscape"}' \
+  http://viewport.local/config
+```
+
+After reboot, `/health` shows `configured=true`, name preserved, `orientation=landscape`, `resolution=800x480`.
+
+### Milestone 5: JPEG Frame Push
+
+- Implement `/frame`.
+- Receive JPEG body, decode into framebuffer, push to panel with current orientation applied.
+- Expected dimensions = effective resolution from M4.
+
+Acceptance (default portrait, so test image is 480×800):
+
+```bash
 curl -X POST \
   -H "Content-Type: image/jpeg" \
   --data-binary @test-480x800.jpg \
   http://viewport.local/frame
 ```
 
-updates screen.
+updates screen. Re-running with `landscape` set via `/config` requires an 800×480 test image.
 
-### Milestone 5: Wake/Sleep/Brightness
+### Milestone 6: Wake/Sleep/Brightness
 
-- Implement `/wake`, `/sleep`, `/brightness`.
-- Make `/frame` reject with `409` when asleep (no auto-wake).
-- Add idle timer with 60s default; fires sleep + `sleep:timeout` callback (callback target is a no-op until M7).
+- Implement `/wake`, `/sleep`, `/brightness` (persisted to NVS).
+- Make `/frame` reject with `409` when asleep — no auto-wake.
+- Add idle timer using `idle_timeout_ms` from NVS; on expiry, transition to sleep and POST `sleep:timeout` callback (callback target is a no-op until M7).
 
 Acceptance:
 
@@ -812,19 +831,7 @@ curl -X POST http://viewport.local/sleep   # backlight off
 curl -X POST http://viewport.local/wake    # backlight on, loading screen
 ```
 
-`/frame` after `/sleep` returns 409. `/frame` after `/wake` paints.
-
-### Milestone 6: Config Persistence
-
-- Implement `/config`.
-- Persist callback/name in NVS.
-- Confirm survives reboot.
-
-Acceptance:
-
-```text
-After reboot, /health shows configured=true and name preserved.
-```
+`/frame` after `/sleep` returns 409. `/frame` after `/wake` paints. Brightness survives reboot.
 
 ### Milestone 7: Touch Callback