Frame submission initial error

- generic:
  - generic:
    - generic "Darkwind 3D world. Use WASD to walk, mouse or arrow keys to look, and E to interact." [active] [ref=e1]
    - generic "Nearby travelers"
    - banner:
      - generic [ref=e2]:
        - img [ref=e3]
        - generic [ref=e6]:
          - generic [ref=e7]: DARKWIND
          - generic [ref=e8]: A WORLD WORTH WANDERING
      - generic [ref=e9]:
        - generic [ref=e12]: Solo diagnostic
        - button "Enable ambience" [ref=e13] [cursor=pointer]:
          - img [ref=e14]
        - button "Open menu" [ref=e17] [cursor=pointer]:
          - img [ref=e18]
    - generic:
      - generic: The Lantern House
      - generic: NW
    - generic:
      - generic:
        - generic: A light in the wilds
        - paragraph: Meet the keeper
        - generic: Elowen has been expecting you.
      - generic:
        - generic:
          - generic:
            - generic: W A S D
            - text: Walk
          - generic:
            - generic: ↔
            - text: Look
          - generic:
            - generic: Space
            - text: Jump
          - generic:
            - generic: Shift
            - text: Run
        - generic [ref=e20]:
          - button "Chat ↵" [ref=e21] [cursor=pointer]:
            - text: Chat
            - generic [ref=e22]: ↵
          - button "Journal J" [ref=e23] [cursor=pointer]:
            - img [ref=e24]
            - text: Journal
            - generic [ref=e26]: J
          - button "Satchel I" [ref=e27] [cursor=pointer]:
            - img [ref=e28]
            - text: Satchel
            - generic [ref=e31]: I
    - complementary [ref=e32]:
      - heading "ENGINE OBSERVATORY" [level=3] [ref=e33]
      - generic [ref=e34]:
        - term [ref=e35]: Engine
        - definition [ref=e36]: 0.1.0
        - term [ref=e37]: Renderer
        - definition [ref=e38]: Owned WebGPU
        - term [ref=e39]: Presentation
        - definition [ref=e40]: Canonical ECS
        - term [ref=e41]: Canonical entities
        - definition [ref=e42]: "1481"
        - term [ref=e43]: Rigged travelers
        - definition [ref=e44]: "0"
        - term [ref=e45]: Walking travelers
        - definition [ref=e46]: "0"
        - term [ref=e47]: Stalled travelers
        - definition [ref=e48]: "0"
        - term [ref=e49]: Motion samples
        - definition [ref=e50]: "0"
        - term [ref=e51]: Physics
        - definition [ref=e52]: Rapier 0.21.0
        - term [ref=e53]: Place
        - definition [ref=e54]: lantern-house
        - term [ref=e55]: Simulation
        - definition [ref=e56]: 0.90 ms / 30 Hz
        - term [ref=e57]: Frame interval p50
        - definition [ref=e58]: 33.3 ms
        - term [ref=e59]: Frame interval p95
        - definition [ref=e60]: 83.4 ms
        - term [ref=e61]: Render CPU
        - definition [ref=e62]: 2.00 ms
        - term [ref=e63]: Frames submitted / completed
        - definition [ref=e64]: 669 / 668
        - term [ref=e65]: Pending GPU frames
        - definition [ref=e66]: "1"
        - term [ref=e67]: Frames skipped while busy
        - definition [ref=e68]: "1955"
        - term [ref=e69]: Queue notification wait
        - definition [ref=e70]: 150.7 ms
        - term [ref=e71]: Longest queue wait
        - definition [ref=e72]: 1269.1 ms
        - term [ref=e73]: Last completed frame age
        - definition [ref=e74]: 134 ms
        - term [ref=e75]: Instances
        - definition [ref=e76]: "674"
        - term [ref=e77]: Visible / shadow instances
        - definition [ref=e78]: 7 / 378
        - term [ref=e79]: Triangles
        - definition [ref=e80]: 47,016
        - term [ref=e81]: Draw calls
        - definition [ref=e82]: "6"
        - term [ref=e83]: GPU buffers / textures
        - definition [ref=e84]: 49 / 4
        - term [ref=e85]: Target texels (estimate)
        - definition [ref=e86]: 23.0 MiB
        - term [ref=e87]: Render passes
        - definition [ref=e88]: shadow → scene → post
        - term [ref=e89]: Shader revision
        - definition [ref=e90]: "1"
        - term [ref=e91]: Graphics recoveries
        - definition [ref=e92]: "0"
        - term [ref=e93]: Render size
        - definition [ref=e94]: 960 × 640
        - term [ref=e95]: Position
        - definition [ref=e96]: 0.00, 0.74, 4.80
        - term [ref=e97]: Room
        - definition [ref=e98]: Solo diagnostic
        - term [ref=e99]: Players
        - definition [ref=e100]: "1"
        - term [ref=e101]: Authority epoch
        - definition [ref=e102]: —
        - term [ref=e103]: Room revision
        - definition [ref=e104]: —
        - term [ref=e105]: Role
        - definition [ref=e106]: Room host
        - term [ref=e107]: Persistence
        - definition [ref=e108]: Local device
      - button "Export playtest report" [ref=e109] [cursor=pointer]:
        - text: Export playtest report
        - img [ref=e110]
      - paragraph [ref=e112]:
        - text: F2 to close · CPU timings, not GPU time.
        - text: Browser-owned cooperative room. Trusted playtesters only.