feat: add pcf analysis web app and api

tests/test_deepseek_mapping.py

@@ -0,0 +1,49 @@
+from app.config import AppConfig
+from app.deepseek import persist_high_confidence_mappings
+from app.models import MappingDecision
+import yaml
+
+
+def test_high_confidence_mapping_is_accepted(tmp_path):
+    source = AppConfig.load()
+    config_path = tmp_path / "mapping.yaml"
+    config_path.write_text(source.path.read_text(encoding="utf-8"), encoding="utf-8")
+    config = AppConfig.load(config_path)
+
+    accepted = persist_high_confidence_mappings(
+        config,
+        [
+            MappingDecision(
+                source_field="LINE-NO",
+                target_field="line_no",
+                confidence=0.96,
+                reason="字段名和样例都表示管线号",
+            ),
+            MappingDecision(
+                source_field="UNKNOWN-X",
+                target_field="diameter",
+                confidence=0.3,
+            ),
+        ],
+        threshold=0.85,
+    )
+
+    assert accepted == {"LINE-NO": "line_no"}
+    reloaded = AppConfig.load(config_path)
+    assert reloaded.dynamic_field_mappings["LINE-NO"] == "line_no"
+    assert "UNKNOWN-X" not in reloaded.dynamic_field_mappings
+
+
+def test_deepseek_key_reads_from_config(tmp_path):
+    source = AppConfig.load()
+    config_path = tmp_path / "mapping.yaml"
+    data = yaml.safe_load(source.path.read_text(encoding="utf-8"))
+    data.setdefault("deepseek", {})["api_key"] = "test-key"
+    config_path.write_text(yaml.safe_dump(data, allow_unicode=True, sort_keys=False), encoding="utf-8")
+    config = AppConfig.load(config_path)
+
+    from app.deepseek import DeepSeekMapper
+
+    mapper = DeepSeekMapper(config)
+    assert mapper.api_key == "test-key"
+    assert mapper.enabled