chore: migrate from deprecated @anthropic-ai/claude-code to @anthropic-ai/claude-agent-sdk

Anthropic rebranded the SDK in 2025 from "Claude Code SDK" to "Claude Agent SDK". Updated all references across package.json, Dockerfile, and documentation to use the current @anthropic-ai/claude-agent-sdk package.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

mcp-server/package-lock.json

@@ -8,18 +8,15 @@
       "name": "@shannon/mcp-server",
       "version": "1.0.0",
       "dependencies": {
-        "@anthropic-ai/claude-code": "^1.0.96",
+        "@anthropic-ai/claude-agent-sdk": "^0.1.0",
         "zod": "^3.22.4"
       }
     },
-    "node_modules/@anthropic-ai/claude-code": {
-      "version": "1.0.128",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-1.0.128.tgz",
-      "integrity": "sha512-uUg5cFMJfeQetQzFw76Vpbro6DAXst2Lpu8aoZWRFSoQVYu5ZSAnbBoxaWmW/IgnHSqIIvtMwzCoqmcA9j9rNQ==",
+    "node_modules/@anthropic-ai/claude-agent-sdk": {
+      "version": "0.1.25",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-agent-sdk/-/claude-agent-sdk-0.1.25.tgz",
+      "integrity": "sha512-qwuydYaA3uamz4ivDzYXfL2PBjGwc0+beeIyo3nvtZQOtFLjH7xPdBK2w3+9KnB3L6V7VooAMdTXPpQyxCwcOg==",
       "license": "SEE LICENSE IN README.md",
-      "bin": {
-        "claude": "cli.js"
-      },
       "engines": {
         "node": ">=18.0.0"
       },
@@ -30,6 +27,9 @@
         "@img/sharp-linux-arm64": "^0.33.5",
         "@img/sharp-linux-x64": "^0.33.5",
         "@img/sharp-win32-x64": "^0.33.5"
+      },
+      "peerDependencies": {
+        "zod": "^3.24.1"
       }
     },
     "node_modules/@img/sharp-darwin-arm64": {