Start NestQuest development manually from OpenCode (#150)

Co-authored-by: orchestrator-agent <orchestrator@cubecraftlabs.com>
Co-committed-by: orchestrator-agent <orchestrator@cubecraftlabs.com>

scripts/render-cycle-prompt

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""Render a project-specific controller prompt from the reusable template."""
+
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+import re
+import sys
+
+
+TEMPLATE = Path(__file__).resolve().parent.parent / "templates/ORCHESTRATOR-PROMPT.template.md"
+PLACEHOLDER = re.compile(r"\{\{([A-Z][A-Z0-9_]*)\}\}")
+
+
+def render(template: str, profile: dict[str, str]) -> str:
+    keys = set(PLACEHOLDER.findall(template))
+    missing = sorted(keys - profile.keys())
+    if missing:
+        raise ValueError("missing profile values: " + ", ".join(missing))
+    for key in keys:
+        if not isinstance(profile[key], str) or not profile[key].strip():
+            raise ValueError(f"{key} must be a nonempty string")
+    result = PLACEHOLDER.sub(lambda match: profile[match.group(1)], template)
+    if PLACEHOLDER.search(result):
+        raise ValueError("profile values must not contain template placeholders")
+    return result
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("profile", type=Path)
+    parser.add_argument("--output", type=Path)
+    args = parser.parse_args()
+    profile = json.loads(args.profile.read_text())
+    if not isinstance(profile, dict):
+        parser.error("profile must be a JSON object")
+    content = render(TEMPLATE.read_text(), profile)
+    if args.output:
+        args.output.write_text(content)
+        print(args.output)
+    else:
+        sys.stdout.write(content)
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())