feat: 完善知识库预览功能与配置管理优化

server/tests/test_env_file_precedence.py

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+from __future__ import annotations
+
+from pathlib import Path
+import os
+import subprocess
+
+
+def _run_script_prefix(
+    tmp_path: Path,
+    relative_script_path: str,
+    env_file_content: str,
+    env: dict[str, str],
+    output_vars: list[str],
+) -> subprocess.CompletedProcess[str]:
+    project_dir = tmp_path / "project"
+    script_source = Path(__file__).resolve().parents[2] / relative_script_path
+    script_copy = project_dir / relative_script_path
+    script_copy.parent.mkdir(parents=True, exist_ok=True)
+    script_copy.write_text(script_source.read_text(encoding="utf-8"), encoding="utf-8")
+    (project_dir / ".env").write_text(env_file_content, encoding="utf-8")
+
+    script_prefix = script_copy.read_text(encoding="utf-8").split('case "$MODE" in', 1)[0]
+    print_lines = "\n".join(f'printf "{name}=%s\\n" "${{{name}:-}}"' for name in output_vars)
+    command = f"""{script_prefix}
+{print_lines}
+"""
+
+    return subprocess.run(
+        ["bash", "-c", command, str(script_copy)],
+        capture_output=True,
+        text=True,
+        env={**os.environ, **env, "MODE": "test"},
+        cwd=script_copy.parent,
+        check=False,
+    )
+
+
+def test_server_start_can_prefer_env_file_over_inherited_onlyoffice_values(tmp_path: Path) -> None:
+    result = _run_script_prefix(
+        tmp_path,
+        "server/server_start.sh",
+        env_file_content=(
+            "ONLYOFFICE_ENABLED=true\n"
+            "ONLYOFFICE_PUBLIC_URL=http://10.10.10.122:8082\n"
+            "ONLYOFFICE_BACKEND_URL=http://main:8000\n"
+            "ONLYOFFICE_JWT_SECRET=change-me-onlyoffice\n"
+        ),
+        env={
+            "ONLYOFFICE_ENABLED": "false",
+            "ONLYOFFICE_PUBLIC_URL": "http://127.0.0.1:8082",
+            "X_FINANCIAL_PREFER_ENV_FILE": "true",
+        },
+        output_vars=["ONLYOFFICE_ENABLED", "ONLYOFFICE_PUBLIC_URL"],
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert "ONLYOFFICE_ENABLED=true" in result.stdout
+    assert "ONLYOFFICE_PUBLIC_URL=http://10.10.10.122:8082" in result.stdout
+
+
+def test_root_start_can_prefer_env_file_over_inherited_onlyoffice_values(tmp_path: Path) -> None:
+    result = _run_script_prefix(
+        tmp_path,
+        "start.sh",
+        env_file_content=(
+            "ONLYOFFICE_ENABLED=true\n"
+            "ONLYOFFICE_PUBLIC_URL=http://10.10.10.122:8082\n"
+            "ONLYOFFICE_BACKEND_URL=http://main:8000\n"
+            "ONLYOFFICE_JWT_SECRET=change-me-onlyoffice\n"
+        ),
+        env={
+            "ONLYOFFICE_ENABLED": "false",
+            "ONLYOFFICE_PUBLIC_URL": "http://127.0.0.1:8082",
+            "X_FINANCIAL_PREFER_ENV_FILE": "true",
+        },
+        output_vars=["ONLYOFFICE_ENABLED", "ONLYOFFICE_PUBLIC_URL"],
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert "ONLYOFFICE_ENABLED=true" in result.stdout
+    assert "ONLYOFFICE_PUBLIC_URL=http://10.10.10.122:8082" in result.stdout