🗑️ remove(progress): drop workflow state tracking

Use plan-status as the only machine state source for plan queueing, claiming, and finishing.

Route record-plan through queue insertion and update templates/prompts to match the single-state model.

BREAKING CHANGE: playbook.py -record-spec and main_loop.py record are removed.

scripts/playbook.py

@@ -50,7 +50,6 @@ def usage() -> str:
     return (
         "Usage:\n"
         "  python scripts/playbook.py -config <path>\n"
-        "  python scripts/playbook.py -record-spec <spec_path> -progress <path>\n"
         "  python scripts/playbook.py -record-plan <plan_path> -progress <path>\n"
         "  python scripts/playbook.py -h"
     )
@@ -1532,23 +1531,11 @@ def main(argv: list[str]) -> int:
 
     spec_path = parse_cli_value(argv, "-record-spec")
     if spec_path is not None:
-        progress_path = parse_cli_value(argv, "-progress")
-        if not progress_path:
-            print("ERROR: -progress is required.\n" + usage(), file=sys.stderr)
-            return 2
-        code, message = MAIN_LOOP.record_workflow_state(
-            Path(progress_path),
-            "planning",
-            spec_path,
-            None,
-            None,
-            None,
+        print(
+            "ERROR: -record-spec has been removed; spec files are the record.",
+            file=sys.stderr,
         )
-        if code != 0:
-            print(message, file=sys.stderr)
-            return code
-        print(message)
-        return 0
+        return 2
 
     plan_path = parse_cli_value(argv, "-record-plan")
     if plan_path is not None:
@@ -1556,14 +1543,7 @@ def main(argv: list[str]) -> int:
         if not progress_path:
             print("ERROR: -progress is required.\n" + usage(), file=sys.stderr)
             return 2
-        code, message = MAIN_LOOP.record_workflow_state(
-            Path(progress_path),
-            "planning",
-            None,
-            plan_path,
-            "executing-plans",
-            "karpathy-guidelines,.agents,AGENT_RULES",
-        )
+        code, message = MAIN_LOOP.record_plan(Path(progress_path), plan_path)
         if code != 0:
             print(message, file=sys.stderr)
             return code