feat: initial commit of Claude Code configuration

Add comprehensive Claude Code setup including:
- Custom coding rules (Go, Git, Testing, Security, Patterns)
- 24 installed plugins (Voltagent, Workflows, Skills)
- Cross-platform installers (bash, PowerShell)
- Complete documentation

This configuration provides the same powerful development
environment across any Claude Code installation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

settings.json.template

@@ -0,0 +1,31 @@
+{
+  "env": {
+    "CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS": "1"
+  },
+  "enabledPlugins": {
+    "everything-claude-code@everything-claude-code": true,
+    "voltagent-core-dev@voltagent-subagents": true,
+    "voltagent-lang@voltagent-subagents": true,
+    "voltagent-infra@voltagent-subagents": true,
+    "voltagent-qa-sec@voltagent-subagents": true,
+    "voltagent-data-ai@voltagent-subagents": true,
+    "voltagent-dev-exp@voltagent-subagents": true,
+    "voltagent-domains@voltagent-subagents": true,
+    "voltagent-biz@voltagent-subagents": true,
+    "voltagent-meta@voltagent-subagents": true,
+    "voltagent-research@voltagent-subagents": true,
+    "python-development@claude-code-workflows": true,
+    "javascript-typescript@claude-code-workflows": true,
+    "backend-development@claude-code-workflows": true,
+    "kubernetes-operations@claude-code-workflows": true,
+    "cloud-infrastructure@claude-code-workflows": true,
+    "security-scanning@claude-code-workflows": true,
+    "code-review-ai@claude-code-workflows": true,
+    "full-stack-orchestration@claude-code-workflows": true,
+    "conductor@claude-code-workflows": true,
+    "agent-teams@claude-code-workflows": true,
+    "document-skills@anthropic-agent-skills": true,
+    "example-skills@anthropic-agent-skills": true,
+    "swift-lsp@claude-plugins-official": true
+  }
+}