test: 移除硬编码路径，适配新 config.py 目录结构 - Closes #10

- conftest.py: secrets 路径改为多位置查找 (QE_SECRETS_PATH env → ~/.openclaw/config/ → workspace-document-analyzer/config/)
- conftest.py: IR 默认路径改为 output/final/ir_final.json (匹配 config.IR_FINAL_JSON)
- conftest.py: parsed 默认路径改为项目相对路径
- agent_poller.py: 添加 --labels 过滤 (向后兼容)
- 新增 agents/QE_AGENT.md + scripts/start_qe_agent.sh

tests/acceptance/conftest.py

@@ -4,13 +4,16 @@ Usage::
 
     pytest tests/acceptance/ -v --run-acceptance [--acceptance-runs=3]
 
-LLM configuration is read from ``~/.openclaw/config/secrets.yaml``:
+LLM configuration is read from secrets.yaml (searched in order):
+    1. QE_SECRETS_PATH env var
+    2. ~/.openclaw/config/secrets.yaml
+    3. ~/.openclaw/workspace-document-analyzer/config/secrets.yaml
+
     deepseek.apiKey / deepseek.baseUrl  → text model (deepseek-v4-flash)
-    dashscope.apiKey  / dashscope.baseUrl → vision model (qwen3-vl-plus)
 
 Environment variables:
-    TEST_IR_PATH       — path to IR JSON to validate (default: ir_final.json sample)
-    TEST_PARSED_PATH   — path to _parsed.json or _updated.json for coverage analysis
+    TEST_IR_PATH       — path to IR JSON (default: output/final/ir_final.json)
+    TEST_PARSED_PATH   — path to _parsed.json or _updated.json (default: output/)
 """
 
 from __future__ import annotations
@@ -30,7 +33,14 @@ import yaml
 _PROJECT_ROOT = Path(__file__).resolve().parent.parent.parent
 sys.path.insert(0, str(_PROJECT_ROOT))
 
-_SECRETS_PATH = Path.home() / ".openclaw" / "config" / "secrets.yaml"
+# Try multiple known secrets locations (no single hardcoded path)
+_SECRETS_CANDIDATES = [
+    Path.home() / ".openclaw" / "config" / "secrets.yaml",
+    Path.home() / ".openclaw" / "workspace-document-analyzer" / "config" / "secrets.yaml",
+]
+
+# Allow override via environment variable
+_SECRETS_PATH = Path(os.environ.get("QE_SECRETS_PATH", ""))
 
 
 def _skill_path(skill_name: str) -> str:
@@ -38,10 +48,16 @@ def _skill_path(skill_name: str) -> str:
 
 
 def _load_secrets() -> dict:
-    """Load LLM configuration from secrets.yaml."""
-    if _SECRETS_PATH.exists():
-        with open(_SECRETS_PATH, "r", encoding="utf-8") as f:
-            return yaml.safe_load(f) or {}
+    """Load LLM configuration from secrets.yaml.
+
+    Tries paths in order: QE_SECRETS_PATH env var → ~/.openclaw/config/ →
+    ~/.openclaw/workspace-document-analyzer/config/.
+    """
+    paths = [_SECRETS_PATH] + _SECRETS_CANDIDATES if _SECRETS_PATH.parts else _SECRETS_CANDIDATES
+    for p in paths:
+        if p.exists():
+            with open(p, "r", encoding="utf-8") as f:
+                return yaml.safe_load(f) or {}
     return {}
 
 
@@ -178,9 +194,11 @@ class _AcceptanceLLM:
         ds_base = ds.get("baseUrl", "https://api.deepseek.com/v1")
 
         if not ds_key:
+            tried = [str(p) for p in ([_SECRETS_PATH] + _SECRETS_CANDIDATES if _SECRETS_PATH.parts else _SECRETS_CANDIDATES)]
             raise RuntimeError(
-                "No DeepSeek API key found. Set deepseek.apiKey in "
-                f"{_SECRETS_PATH} or DEEPSEEK_API_KEY env var."
+                "No DeepSeek API key found. Tried:\n  "
+                + "\n  ".join(tried)
+                + "\nSet deepseek.apiKey in secrets.yaml or DEEPSEEK_API_KEY env var."
             )
 
         self._api_key = ds_key