# Web Camera Host Delivery

Implemented and frontend-built: 16 display commands. User validation is deferred.
This does not declare all Web functions or the FreeCAD migration complete.

## Implementation

- Nine standard orientations reuse the supplied src/Gui/Camera.cpp quaternions.
- Zoom uses NavigationStyle.cpp's exponential step with desktop default 0.2.
- Left/right rotation follows View3DPy.cpp's quarter turn about viewing direction.
- Fit All uses only visible rendered document objects, including ancestor
  visibility, to frame the display camera. It excludes lights and axes helpers.
- Store/Recall Working View retains camera/target/clipping state by document in
  the mounted host. Missing saved state is an explicit error, not dummy success.
- Changing camera orientation rebuilds OrbitControls through its public API:
  cached up-axis coordinates and pending damping cannot overwrite the command.
  Renderer listeners and owners are updated; old input listeners are disposed.
- Existing ImportRenderBridge and OpenScadDesktopView share the implementation.
  Viewport orientation menu and icon commands operate on that host's document;
  the existing desktop command dispatcher also invokes the same handler.
- Catalog, route discovery and implementation packets include the actual helper.
  Missing host still fails; no Web stateful fixture or native marker fallback.

Three.js only manipulates display state and returned meshes. No geometry/model
algorithm was added; existing OCCT/FreeCAD WASM artifacts were not recompiled.

## Recorded Build Costs

| Step | Seconds |
| --- | ---: |
| Initial capability route generation | 8.508 |
| Implementation packet preparation | 0.664 |
| Formal pipeline: module registry | 0.104 |
| Formal pipeline: capability registry after final UI edits | 8.423 |
| Formal pipeline: frontend build | 1.633 |
| Incremental public asset sync, inside frontend build | 0.056 |
| Formal pipeline: deferred business metadata | 0.935 |
| Formal pipeline total | 11.095 |

Receipt: web-camera-host-pipeline.json. Sixteen routed records, frontend build
exit 0. The registry reported 1208/1451 routed, 243 still requiring implementation
at publication. This is source/route status, not business acceptance or parity.
No tests, acceptance, browser checks or performance benchmarks were run.

## Remaining Scope

Projection switching, selection fitting, other view hosts and full desktop camera
preferences are not claimed here. Stored working views last for the mounted host;
OpenScadDesktopView currently remounts on document/selection updates. This is not
FCStd/OPFS persistence of camera presets. View-oriented commands do not unify the
live documents owned by separate native workers.

## Unattended Read Bottleneck

The observed 20-cycle window contained 12 budget-exceeded cycles. Source reading
itself used 1.744 seconds, while post-read model gaps used 681.824 seconds (32.2%).
One previous BIM turn explicitly exited because the source-read cap prevented
inspecting already located native behavior. These measurements do not establish
that all model gaps are caused by the cap.

Added read_implementation_source.py: exact current-packet source/support/native
anchor files only, four supplemental windows per turn, at most 100 lines and
12000 bytes per window. File locking enforces the shared allowance; repeated
unchanged windows return a reuse notice. No broad search or build/test bypass.
Raw and compact prompts both describe the tool. The scheduler accounts this as
source/anchor, separate from ordinary search limits, retaining command/time caps.
Blocked rg/fast_source_search now return exit 64 with the recovery command,
instead of success without searching. The file-modification rule no longer
forbids reading an actually changed or missing patch anchor through this tool.

The default stalled-module cooldown was reduced from 600 to 180 seconds. A
module still moves aside after repeated no-progress turns and remains recorded
as deferred, but the planner can retry it three times sooner. An explicit
`FREECAD_MODULE_RETRY_SECONDS` environment value still overrides this default.

This fixes a concrete context-access dead end. Overall unattended throughput
recovery still requires observed subsequent cycles, not a live-process claim.

Deployment: scheduler v25 was drained and restarted by the existing watchdog,
PID 3292765, cycle 8157. That real implementation cycle used source/anchor to
read WebViewCommands.h after the ordinary cap. It also exposed an incomplete
packet allowlist: pending Web view commands lacked the existing Part view facade
and mounted UI files. Packet preparation now includes both document owners and
the existing view transport for pending Web/Std commands as well as implemented
ones. Build routing still requires actual implemented command catalog membership.
The refreshed packet includes NativeDocumentView.h, part-view-facade.ts and
web-view-task.tsx. No arbitrary-path reading was enabled.

That cycle reported five visibility handlers edited, with browser wiring and
eleven other selected commands still incomplete. This is not an additional
completed-delivery claim. Independently, the live global registry later reported
1212/1451 routed and 239 implementation-required; other scheduler work is not
credited to the sixteen-camera-command batch.