Tasks: every link and every gh call names the GitHub it is on

Phase 3 of 3. Small, verifiable tasks; each _Test:_ names a row of testing-plan.md.

Task list

• [x] 1. The resolver

  • cli/the_loop/ghhost.py: github_host, api_base_for, host_of_api_base, host_from_remote; sessions.is_github_host made public.
  • Security-relevant (A1, A4): the grammar is applied before any interpolation; the remote is last and gated on a root.
  • Depends on: none
  • Requirements: R1.1, R1.2, R6.1
  • Test: T1 — uv run pytest cli/tests/test_ghhost.py

• [x] 2. Minting with the host

  • cli/the_loop/graph/refs.py (host="" on both functions), graph/bootstrap.py (config["githubHost"], prRef), graph/runtime.py (derive_ref(..., host)).
  • Depends on: 1
  • Requirements: R2.1–R2.3
  • Test: T2, T7

• [x] 3. One gh spelling, every writer

  • cli/the_loop/comments.py (gh_host_args, comment_argv, issue_argv, create_issue), linkage.py (existence_argv reuses it), reactions.py (ReactionTarget.host, _argv).
  • Depends on: 1
  • Requirements: R4.1, R4.2, R4.4, R4.5
  • Test: T3

• [x] 4. The poller

  • cli/the_loop/poller/github.py: RepoSpec.host/gh_repo/parse; GhClient methods take host; the provider passes it; owns and closure.
  • Depends on: 3
  • Requirements: R4.1, R4.2, R5.1–R5.3
  • Test: T4

• [x] 5. The graph integrations

  • cli/the_loop/graph/integrations/github.py: _ref_parts, GitHubCli argv, GitHubApi base derivation, _linked_pull_refs(host).
  • Depends on: 1, 3
  • Requirements: R4.1–R4.4
  • Test: T5

• [x] 6. The review brief

  • cli/the_loop/graph/hooks/review.py: _PULL_URL any host; _own_coords; _normalize_pulls and _state_pulls spell refs via WorkItemRef.
  • Depends on: none
  • Requirements: R3.1–R3.3
  • Test: T6

• [x] 7. Schema, template, config, docs

  • Both schema copies (byte-identical), skills/the-loop/templates/cli-config.yaml, .the-loop/cli-config.yaml, docs/config/cli/integrations-options.md, polling-options.md, routing-options.md, docs/cli/concepts.md, docs/cli/state.md, skills/the-loop/reference/automation.md.
  • Depends on: 1
  • Requirements: R1.3, R1.4, R5.1
  • Test: T8

• [ ] 8. Capability docs, decision, execution log, evidence

  • docs/capabilities/cli.md, docs/capabilities/channels.md, docs/decisions/decision-104.md (+ index), docs/specs/issue-311/execution-log.md, evidence/verification.md, evidence/security-review.md.
  • Depends on: 1–7
  • Requirements: all
  • Test: T9, T10 — make check