fix: [nomad-prep] P8 — spot-check lib/mirrors.sh against empty Forgejo target (#796)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lib/AGENTS.md

@@ -14,7 +14,7 @@ sourced as needed.
 | `lib/parse-deps.sh` | Extracts dependency issue numbers from an issue body (stdin → stdout, one number per line). Matches `## Dependencies` / `## Depends on` / `## Blocked by` sections and inline `depends on #N` / `blocked by #N` patterns. Inline scan skips fenced code blocks to prevent false positives from code examples in issue bodies. Not sourced — executed via `bash lib/parse-deps.sh`. | dev-poll |
 | `lib/formula-session.sh` | `acquire_run_lock()`, `load_formula()`, `load_formula_or_profile()`, `build_context_block()`, `ensure_ops_repo()`, `ops_commit_and_push()`, `build_prompt_footer()`, `build_sdk_prompt_footer()`, `formula_worktree_setup()`, `formula_prepare_profile_context()`, `formula_lessons_block()`, `profile_write_journal()`, `profile_load_lessons()`, `ensure_profile_repo()`, `_profile_has_repo()`, `_count_undigested_journals()`, `_profile_digest_journals()`, `_profile_restore_lessons()`, `_profile_commit_and_push()`, `resolve_agent_identity()`, `build_graph_section()`, `build_scratch_instruction()`, `read_scratch_context()`, `cleanup_stale_crashed_worktrees()` — shared helpers for formula-driven polling-loop agents (lock, .profile repo management, prompt assembly, worktree setup). Memory guard is provided by `memory_guard()` in `lib/env.sh` (not duplicated here). `resolve_agent_identity()` — sets `FORGE_TOKEN`, `AGENT_IDENTITY`, `FORGE_REMOTE` from per-agent token env vars and FORGE_URL remote detection. `build_graph_section()` generates the structural-analysis section (runs `lib/build-graph.py`, formats JSON output) — previously duplicated in planner-run.sh and predictor-run.sh, now shared here. `cleanup_stale_crashed_worktrees()` — thin wrapper around `worktree_cleanup_stale()` from `lib/worktree.sh` (kept for backwards compatibility). **Journal digestion guards (#702)**: `_profile_digest_journals()` respects `PROFILE_DIGEST_TIMEOUT` (default 300s) and `PROFILE_DIGEST_MAX_BATCH` (default 5 journals per run); `_profile_restore_lessons()` restores the previous lessons-learned.md on digest failure. | planner-run.sh, predictor-run.sh, gardener-run.sh, supervisor-run.sh, dev-agent.sh |
 | `lib/guard.sh` | `check_active(agent_name)` — reads `$FACTORY_ROOT/state/.{agent_name}-active`; exits 0 (skip) if the file is absent. Factory is off by default — state files must be created to enable each agent. **Logs a message to stderr** when skipping (`[check_active] SKIP: state file not found`), so agent dropout is visible in loop logs. Sourced by dev-poll.sh, review-poll.sh, predictor-run.sh, supervisor-run.sh. | polling-loop entry points |
-| `lib/mirrors.sh` | `mirror_push()` — pushes `$PRIMARY_BRANCH` + tags to all configured mirror remotes (fire-and-forget background pushes). Reads `MIRROR_NAMES` and `MIRROR_*` vars exported by `load-project.sh` from the `[mirrors]` TOML section. Failures are logged but never block the pipeline. Sourced by dev-poll.sh — called after every successful merge. | dev-poll.sh |
+| `lib/mirrors.sh` | `mirror_push()` — pushes `$PRIMARY_BRANCH` + tags to all configured mirror remotes (fire-and-forget background pushes). Reads `MIRROR_NAMES` and `MIRROR_*` vars exported by `load-project.sh` from the `[mirrors]` TOML section. Failures are logged but never block the pipeline. `mirror_pull_register(clone_url, owner, repo_name, [interval])` — registers a Forgejo pull mirror via `POST /repos/migrate` with `mirror: true`. Creates the target repo and queues the first sync automatically. Works against empty Forgejo instances — no pre-existing content required. Used for Nomad migration cutover: point at Codeberg source, wait for sync, then proceed with `disinto init`. See [docs/mirror-bootstrap.md](../docs/mirror-bootstrap.md) for the full cutover path. Sourced by dev-poll.sh — called after every successful merge. | dev-poll.sh |
 | `lib/build-graph.py` | Python tool: parses VISION.md, prerequisites.md (from ops repo), AGENTS.md, formulas/*.toml, evidence/ (from ops repo), and forge issues/labels into a NetworkX DiGraph. Runs structural analyses (orphaned objectives, stale prerequisites, thin evidence, circular deps) and outputs a JSON report. Used by `review-pr.sh` (per-PR changed-file analysis) and `predictor-run.sh` (full-project analysis) to provide structural context to Claude. | review-pr.sh, predictor-run.sh |
 | `lib/secret-scan.sh` | `scan_for_secrets()` — detects potential secrets (API keys, bearer tokens, private keys, URLs with embedded credentials) in text; returns 1 if secrets found. `redact_secrets()` — replaces detected secret patterns with `[REDACTED]`. | issue-lifecycle.sh |
 | `lib/stack-lock.sh` | File-based lock protocol for singleton project stack access. `stack_lock_acquire(holder, project)` — polls until free, breaks stale heartbeats (>10 min old), claims lock. `stack_lock_release(project)` — deletes lock file. `stack_lock_check(project)` — inspect current lock state. `stack_lock_heartbeat(project)` — update heartbeat timestamp (callers must call every 2 min while holding). Lock files at `~/data/locks/<project>-stack.lock`. | docker/edge/dispatcher.sh, reproduce formula |