feat(orchestrator): add SSE events, queue controls, and mosaic rails sync

scripts/agent/orchestrator-worker.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+task_file="${1:-}"
+if [[ -z "$task_file" || ! -f "$task_file" ]]; then
+  echo "[orchestrator-worker] missing task file argument" >&2
+  exit 1
+fi
+
+worker_exec="${MOSAIC_WORKER_EXEC:-}"
+if [[ -z "$worker_exec" ]]; then
+  if command -v codex >/dev/null 2>&1; then
+    worker_exec="codex -p"
+  elif command -v opencode >/dev/null 2>&1; then
+    worker_exec="opencode -p"
+  else
+    echo "[orchestrator-worker] set MOSAIC_WORKER_EXEC to your worker command (example: 'codex -p' or 'opencode -p')" >&2
+    exit 1
+  fi
+fi
+
+prompt="$(python3 - "$task_file" <<'PY'
+import json
+import sys
+from pathlib import Path
+
+task = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
+task_id = str(task.get("id", "TASK"))
+title = str(task.get("title", ""))
+description = str(task.get("description", ""))
+meta = task.get("metadata", {}) or {}
+issue = str(meta.get("issue", ""))
+repo = str(meta.get("repo", ""))
+branch = str(meta.get("branch", ""))
+depends = task.get("depends_on", [])
+if isinstance(depends, list):
+    depends_str = ", ".join(str(x) for x in depends)
+else:
+    depends_str = str(depends)
+
+print(
+    f"""Read ~/.config/mosaic/STANDARDS.md, then AGENTS.md and SOUL.md (if present).
+Complete this queued task fully.
+
+Task ID: {task_id}
+Title: {title}
+Description: {description}
+Issue: {issue}
+Repo hint: {repo}
+Branch hint: {branch}
+Depends on: {depends_str}
+
+Requirements:
+- Implement and verify the task end-to-end.
+- Keep changes scoped to this task.
+- Run project checks and tests relevant to touched code.
+- Return with a concise summary of what changed and verification results.
+"""
+)
+PY
+)"
+
+PROMPT="$prompt" bash -lc "$worker_exec \"\$PROMPT\""