feat(config): 🎉 Add crush.json configuration file

Add initial configuration for Crush CLI tool with LSP and MCP server
support:

**LSP Servers:**
- TypeScript/JavaScript (typescript-language-server)
- Rust (rust-analyzer)
- Nix (nil)

**MCP Servers:**
- Context7 search
- Playwright testing
- SearXNG search
- Git operations
- Time utilities
- Sequential thinking
- NixOS tools
- Kubernetes
- Filesystem access

Configuration includes proper schema reference and environment setup for
local
SearXNG instance.

home/.config/crush/crush.json

@@ -0,0 +1,103 @@
+{
+  "$schema": "https://charm.land/crush.json",
+  "lsp": {
+    "typescript": {
+      "command": "typescript-language-server",
+      "args": [
+        "--stdio"
+      ]
+    },
+    "javascript": {
+      "command": "typescript-language-server",
+      "args": [
+        "--stdio"
+      ]
+    },
+    "rust": {
+      "command": "rust-analyzer"
+    },
+    "nix": {
+      "command": "nil"
+    }
+  },
+  "mcp": {
+    "context7": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "-y",
+        "@upstash/context7-mcp"
+      ]
+    },
+    "playwright": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "-y",
+        "@playwright/mcp"
+      ]
+    },
+    "searxng": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "-y",
+        "mcp-searxng"
+      ],
+      "env": {
+        "SEARXNG_URL": "http://127.0.0.1:7777"
+      }
+    },
+    "git": {
+      "type": "stdio",
+      "command": "uvx",
+      "args": [
+        "--python",
+        "/run/current-system/sw/bin/python",
+        "mcp-server-git"
+      ]
+    },
+    "time": {
+      "type": "stdio",
+      "command": "uvx",
+      "args": [
+        "--python",
+        "/run/current-system/sw/bin/python",
+        "mcp-server-time"
+      ]
+    },
+    "sequential-thinking": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "-y",
+        "@modelcontextprotocol/server-sequential-thinking"
+      ]
+    },
+    "nixos": {
+      "type": "stdio",
+      "command": "uvx",
+      "args": [
+        "--python",
+        "/run/current-system/sw/bin/python",
+        "mcp-nixos"
+      ]
+    },
+    "k8s": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "@strowk/mcp-k8s"
+      ]
+    },
+    "filesystem": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "-y",
+        "@modelcontextprotocol/server-filesystem",
+        "/home/xnm"
+      ]
+    }
+  }
+}