Remove .claude personal config from repository and add to gitignore

Security fix: .claude/mcp-servers.json contained plain-text passwords:
- MySQL dev password: shopdb-dev-password
- VM SSH password: vos313 (SupportUser and shopfloor accounts)

These credentials are now in GitHub history and should be rotated.

Changes:
- Add .claude/settings*.json and mcp-servers.json to .gitignore
- Remove these files from git tracking (files remain locally)
- Keep shared team resources: skills/, plans/, setup/, maintenance/

These are personal/machine-specific configuration:
- settings.json: Personal hooks (stop-dev.cmd), preferences
- mcp-servers.json: Local paths, database credentials, SSH passwords

Each developer should configure their own .claude/ settings locally.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/mcp-servers.json

@@ -1,44 +0,0 @@
-{
-  "mcpServers": {
-    "gortex": {
-      "command": "C:\\Users\\270015376\\Documents\\gortex.exe",
-      "args": ["mcp"],
-      "cwd": "C:\\Users\\270015376\\Documents\\github\\flask-shopdb"
-    },
-    "mysql": {
-      "command": "npx",
-      "args": [
-        "-y",
-        "@benborla29/mcp-server-mysql",
-        "mysql://shopdb:shopdb-dev-password@127.0.0.1:3306/shopdb_flask"
-      ]
-    },
-    "browser": {
-      "command": "npx",
-      "args": [
-        "-y",
-        "@agent-infra/mcp-server-browser"
-      ]
-    },
-    "vm": {
-      "command": "npx",
-      "args": [
-        "-y",
-        "ssh-mcp",
-        "--host", "192.168.100.10",
-        "--user", "SupportUser",
-        "--password", "vos313"
-      ]
-    },
-    "vm-shopfloor": {
-      "command": "npx",
-      "args": [
-        "-y",
-        "ssh-mcp",
-        "--host", "192.168.100.10",
-        "--user", "shopfloor",
-        "--password", "vos313"
-      ]
-    }
-  }
-}

.claude/settings.json

@@ -1,20 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Bash(npm search *)"
-    ]
-  },
-  "context": {
-    "alwaysInclude": [
-      ".claude/INDEX.md",
-      ".claude/plans/TOOL-ENGAGEMENT-PROTOCOL.md"
-    ]
-  },
-  "hooks": {
-    "SessionEnd": [{
-      "type": "command",
-      "command": "cmd /c stop-dev.cmd"
-    }]
-  },
-  "enableAllProjectMcpServers": true
-}

.gitignore

@@ -165,3 +165,8 @@ stop-dev.cmd
 # Not product source; developer-local utilities.
 scripts/.temp/
 scripts/docs/
+
+# Claude Code personal configuration (machine-specific)
+.claude/settings.json
+.claude/settings.local.json
+.claude/mcp-servers.json