Delete Design A, the harness-hook completion path, and retired deploy files

Acts on the seven review comments on PR #1.

Design A is gone (comment 4). clients/ deleted rather than tracked: with
workers carrying cross-machine work the bridge is undeployed, which supersedes
the 2026-07-27 "keep through Phase 5" decision. CLAUDE.md, AGENTS.md and
AUDIT.md updated from "retained" to "deleted".

The harness-hook completion path is gone (comment 10). Investigation of the
live OpenCode QA run showed orchestra-worker owns completion end to end: it
watches for .orchestra/done, confirms via AgentStatus that the agent is not
busy, then posts through /v1/federation/* with both lease epoch and expected
version. The hook scripts used a different, older convention
(.orchestra-report.md) and posted to /v1/harness/complete, which had already
been reduced to a 410 stub - so that path could not have completed a task.
Nothing exercised it, because the live run never used it. Deleted: the three
deploy/hooks scripts, the 410 route, the unmounted harnessCompletion handler,
and its test. That test passed against a handler no mux routed to, which is
the exact "looks wired but isn't" pattern CLAUDE.md warns about; the
constant-time token compare added to it earlier today goes with it, having
never been reachable. /v1/harness/turn is untouched and still live.

Retired deployment files (comments 8, 12, 14): deploy/orchestra.service and
deploy/redeploy.sh (which sudo-installed to /usr/local/bin and restarted that
unit), plus deploy/docker-api-entrypoint.sh. The entrypoint was safe to remove
once its premise was checked: env vars reach the container through
`env_file: .env` in compose.yaml, not by sourcing /etc/orchestra/orchestra.env
- only config.jsonc is bind-mounted there - and Dockerfile.api's line 17
already sets ORCHESTRA_DATA/ORCHESTRA_PORT. Dockerfile.api now execs
/app/orchestra directly. orchestra-worker.service is a different, current unit
and is kept.

deploy/config.example.json deleted as a duplicate (comment 6); the annotated
.jsonc is the one registry.go points at, and its header no longer tells the
reader to copy the file that just went away.

Documentation corrected beyond the deletions:
- CLAUDE.md's deployment section claimed the container bind-mounts
  /etc/orchestra:ro and its entrypoint sources the env file. Both wrong.
- AGENTS.md still described a systemd deployment on homesrv as of 2026-07-27.
- AUDIT.md's H5 row still described a "retained compatibility handler".
- deploy/DEPLOYMENT.md still named redeploy.sh as the deployment path.
- deploy/orchestra.env.example still cited EnvironmentFile=.

TOKEN_MINIMAL_WORKFLOW_PLAN.md (comment 2) is untouched: it and WEB_UI_PLAN.md
were both missed by REVIEW.md's documentation sweep, and reconciling a 534-line
forward-looking plan against AUDIT.md is its own task, not a review fixup.

Verified: go build ./..., go vet ./..., go test ./... all pass after the
deletions, and go list ./... has no node_modules entry. No live herdr or pane
was touched; nothing was deployed. The running image still predates this
commit until compose is rebuilt.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GEugbHVYfAXFpTqDYbByEB

deploy/orchestra.env.example

@@ -1,6 +1,8 @@
-# Copy to /etc/orchestra/orchestra.env (chmod 600, owned by the orchestra
-# user) and fill in the values you need. Referenced by orchestra.service via
-# EnvironmentFile=. Every var below is read directly from os.Getenv in
+# Copy to the compose directory as `.env` (chmod 600) and fill in the values
+# you need; `compose.yaml` loads it via `env_file:`. The retired
+# orchestra.service EnvironmentFile= path is gone as of 2026-07-31, and the
+# container has no entrypoint script that sources an env file — compose passes
+# these in directly. Every var below is read directly from os.Getenv in
 # cmd/orchestra/main.go and the packages it wires up — grep ORCHESTRA_ in the
 # repo if this list ever needs re-deriving.