Fix Docker startup issues

- Change executable from claude-code to claude in startup.sh
- Fix .env parsing to handle comments using set -a/source
- Add explicit PATH for npm global binaries in Dockerfile
- Update scratchpad.md with fix documentation

config/mcp-config.json

@@ -1,14 +1,16 @@
 {
   "mcpServers": {
     "twilio": {
-      "command": "node",
-      "args": ["/usr/lib/node_modules/@twilioalpha/mcp-server-twilio/build/index.js"],
-      "env": {
-        "TWILIO_ACCOUNT_SID": "${TWILIO_ACCOUNT_SID}",
-        "TWILIO_AUTH_TOKEN": "${TWILIO_AUTH_TOKEN}",
-        "TWILIO_PHONE_NUMBER": "${TWILIO_PHONE_NUMBER}",
-        "YOUR_PHONE_NUMBER": "${YOUR_PHONE_NUMBER}"
-      }
+      "command": "npx",
+      "args": [
+        "-y",
+        "@twilio-alpha/mcp",
+        "${TWILIO_ACCOUNT_SID}/${TWILIO_API_KEY}:${TWILIO_API_SECRET}",
+        "--services",
+        "twilio_api_v2010",
+        "--tags",
+        "Api20100401Message"
+      ]
     }
   }
 }