Adopt MIT for DSH packages

packages/test-support/acp-snapshot/package.json

@@ -30,7 +30,7 @@
     "lib/invariant.js",
     "lib/types/**/*.d.ts"
   ],
-  "license": "BSD-3-Clause",
+  "license": "MIT",
   "dependencies": {
     "@agentclientprotocol/sdk": "0.25.1",
     "@deepseek-ai/dsh-loader-smoke": "workspace:*",

packages/test-support/agent-loop-testkit/package.json

@@ -30,7 +30,7 @@
     "lib/invariant.js",
     "lib/types/**/*.d.ts"
   ],
-  "license": "BSD-3-Clause",
+  "license": "MIT",
   "peerDependencies": {
     "@deepseek-ai/dsh-agent": "workspace:^",
     "@deepseek-ai/dsh-invariants": "workspace:^",

packages/test-support/client-runtime/package.json

@@ -25,7 +25,7 @@
     "./src/*": "./src/*",
     "./package.json": "./package.json"
   },
-  "license": "BSD-3-Clause",
+  "license": "MIT",
   "dependencies": {
     "@testing-library/dom": "^10.4.1",
     "@testing-library/react": "^16.3.2",

packages/test-support/llm-mock-server/package.json

@@ -30,7 +30,7 @@
     "lib/invariant.js",
     "lib/types/**/*.d.ts"
   ],
-  "license": "BSD-3-Clause",
+  "license": "MIT",
   "peerDependencies": {
     "@deepseek-ai/dsh-invariants": "workspace:^",
     "@deepseek-ai/cordis": "workspace:^"

packages/test-support/llm-replay/package.json

@@ -30,7 +30,7 @@
     "lib/invariant.js",
     "lib/types/**/*.d.ts"
   ],
-  "license": "BSD-3-Clause",
+  "license": "MIT",
   "peerDependencies": {
     "@deepseek-ai/dsh-compaction": "workspace:^",
     "@deepseek-ai/dsh-invariants": "workspace:^",

packages/test-support/loader-smoke/package.json

@@ -30,7 +30,7 @@
     "lib/invariant.js",
     "lib/types/**/*.d.ts"
   ],
-  "license": "BSD-3-Clause",
+  "license": "MIT",
   "dependencies": {
     "execa": "^10.0.0",
     "tsx": "^4.22.4"