docs(copilot): document GitHub Copilot CLI in full

- New docs/copilot-integration.md in the shape of the other CLI guides: install and identity
  probe, authentication (keychain vs plain-text config.json, COPILOT_GITHUB_TOKEN), what Codeman
  wires up (Run button --yolo and its clamp, model, resume, continue, --name rule), BYOK custom
  endpoints, terminal behaviour (drag selection, wheel and touch), the codeman agent verbs
  (ready mark, read), plan usage, Docker, Remote SSH, what is deliberately not wired, known gaps.
- Agent-CLIs wiki: the eleven-modes table, a GitHub Copilot CLI section, the env prefix row, the
  feature-comparison rows and the status endpoint list.
- README, Home, FAQ, Core Concepts, Docker Cases, Remote SSH, Contributing, The Dashboard and
  Custom Model Endpoints: mode lists and counts; CLAUDE.md: stack line, SessionMode, prefixes,
  resolver list, external-CLI notes and the plan-usage source; api-reference MCP target wording;
  the env allowlist error message names COPILOT_*.

docs/wiki/Docker-Cases.md

@@ -4,7 +4,7 @@ Run a case inside its own container instead of directly on your host: for isolat
 reproducible toolchain, and for the ability to pick the whole environment up and move it to
 another machine.
 
-A docker case is a **location overlay**, not a run mode. All ten run modes work inside a
+A docker case is a **location overlay**, not a run mode. All eleven run modes work inside a
 container. See [Core Concepts](Core-Concepts).
 
 ## One-time setup: the base image