fix(chart): add fetch and sequentialthinking to values schema

PR #45 added fetch and sequentialthinking MCP sidecars to values.yaml
and the deployment template but missed updating values.schema.json.
The schema has additionalProperties: false on mcp.sidecars, causing
Helm upgrade to fail with validation errors.

Also adds resourceProfile to the schema as it was missing.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

chart/Chart.yaml

@@ -2,5 +2,5 @@ apiVersion: v2
 name: devcontainer
 description: Dev Container with AI coding agents and MCP sidecars
 type: application
-version: 0.4.9
+version: 0.4.7
 appVersion: "latest"

chart/templates/deployment.yaml

@@ -193,7 +193,7 @@ spec:
           imagePullPolicy: Always
           command: ["fastmcp", "run", "--transport", "sse", "--host", "0.0.0.0", "--port", "{{ .Values.mcp.sidecars.sequentialthinking.port }}"]
           ports:
-            - name: seqthinking
+            - name: sequentialthinking
               containerPort: {{ .Values.mcp.sidecars.sequentialthinking.port }}
           livenessProbe:
             tcpSocket: