fix(burst): recognize native pressure units and separate isolation impact

contracts/manifest.json

@@ -3,7 +3,7 @@
   "contracts": {
     "server": {
       "file": "server-v1.openapi.json",
-      "sha256": "c31e9b4c71216951d1525acf1bcb8aeba4158b6cdc6b0b9dc01be02f9b6e6af3"
+      "sha256": "9801087d40ac0e1f67871f9a1db850cbcce47614cceec0a7e8771cdf58385f53"
     }
   }
 }

contracts/server-v1.openapi.json

@@ -9945,6 +9945,22 @@
             "title": "Action",
             "type": "string"
           },
+          "event_kind": {
+            "anyOf": [
+              {
+                "enum": [
+                  "burst",
+                  "pollution"
+                ],
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "定位事件语义：爆管候选传 burst，污染源传 pollution；普通资产定位省略",
+            "title": "Event Kind"
+          },
           "feature_ids": {
             "items": {
               "maxLength": 128,

contracts/view-command.schema.json

@@ -7,6 +7,13 @@
           "type": "string",
           "const": "locate_features"
         },
+        "event_kind": {
+          "type": "string",
+          "enum": [
+            "burst",
+            "pollution"
+          ]
+        },
         "layer": {
           "type": "string",
           "enum": [