fix: sys.path + early forgeenv import to survive uv-run env

scripts/jobs/train_repair_agent.py

@@ -63,6 +63,10 @@ _sh([
     f"https://USER:{HF_TOKEN}@huggingface.co/{SOURCE_REPO}",
     str(src_dir),
 ])
+# Belt-and-braces: prepend the source dir to sys.path so `import forgeenv`
+# works even if `pip install -e` doesn't persist inside the uv-managed
+# venv. We still run pip install for any setuptools side-effects.
+sys.path.insert(0, str(src_dir))
 
 step("1. pip install + verify GPU")
 _sh([sys.executable, "-m", "pip", "install", "-e", str(src_dir)])
@@ -87,7 +91,7 @@ if torch.cuda.is_available():
         flush=True,
     )
 
-step("2. ping live env Space")
+step("2. ping live env Space + verify forgeenv import")
 import requests  # noqa: E402
 
 try:
@@ -96,6 +100,13 @@ try:
 except Exception as e:  # noqa: BLE001
     print(f"[job] WARN: env ping failed: {e}", flush=True)
 
+# Fail fast if forgeenv isn't on the path -- much cheaper to discover
+# this here than after 8+ minutes of SFT.
+import forgeenv  # noqa: F401, E402
+from forgeenv.training.grpo_repair import run_grpo  # noqa: F401, E402
+
+print("[job] forgeenv import OK", flush=True)
+
 step("3. SFT: load Qwen + LoRA via Unsloth, train on warm-start pairs")
 from unsloth import FastLanguageModel  # noqa: E402