Initial dotfiles setup with GNU stow

Centralize dotfiles from ~ into stow packages:
- zsh: .zshrc, .zshenv
- git: .gitconfig
- nvim: init.lua, lua/, plugin/, after/, lazy-lock.json
- tmux: tmux.conf, session-list.sh
- karabiner: karabiner.json
- ghostty: config.ghostty
- claude: CLAUDE.md, settings.json, settings.local.json, statusline.sh, 30 commands

claude/.claude/settings.json

@@ -0,0 +1,72 @@
+{
+  "$schema": "https://json.schemastore.org/claude-code-settings.json",
+  "env": {
+    "CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS": "1"
+  },
+  "permissions": {
+    "defaultMode": "default"
+  },
+  "hooks": {
+    "PreToolUse": [
+      {
+        "matcher": "Read",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "if [[ $(jq -r .tool_input.file_path 2>/dev/null) == */Users/rathi/Documents/GitHub/claude-code-docs/* ]]; then LAST_PULL=\"/Users/rathi/Documents/GitHub/claude-code-docs/.last_pull\" && NOW=$(date +%s) && GITHUB_TS=$(jq -r .last_updated \"/Users/rathi/Documents/GitHub/claude-code-docs/docs/docs_manifest.json\" 2>/dev/null | cut -d. -f1) && GITHUB_UNIX=$(date -j -u -f \"%Y-%m-%dT%H:%M:%S\" \"$GITHUB_TS\" \"+%s\" 2>/dev/null || echo 0) && if [[ -f \"$LAST_PULL\" ]]; then LAST=$(cat \"$LAST_PULL\"); if [[ $GITHUB_UNIX -gt $LAST ]]; then echo \"🔄 Updating docs to latest version...\" >&2 && (cd /Users/rathi/Documents/GitHub/claude-code-docs && git pull --quiet) && echo $NOW > \"$LAST_PULL\"; fi; else echo \"🔄 Syncing docs for the first time...\" >&2 && (cd /Users/rathi/Documents/GitHub/claude-code-docs && git pull --quiet) && echo $NOW > \"$LAST_PULL\"; fi; fi"
+          }
+        ]
+      }
+    ],
+    "SessionStart": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "/Users/rathi/.thread-view/hooks/session-start.sh"
+          }
+        ]
+      }
+    ],
+    "PostToolUse": [
+      {
+        "matcher": "(?i)edit|write|create_file",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "/Users/rathi/.thread-view/hooks/post-edit.sh"
+          }
+        ]
+      }
+    ],
+    "Stop": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "/Users/rathi/.thread-view/hooks/session-stop.sh"
+          }
+        ]
+      }
+    ]
+  },
+  "statusLine": {
+    "type": "command",
+    "command": "/Users/rathi/.claude/statusline.sh"
+  },
+  "enabledPlugins": {
+    "compound-engineering@every-marketplace": true
+  },
+  "skipDangerousModePermissionPrompt": true,
+  "mcpServers": {
+    "context7": {
+      "type": "http",
+      "url": "https://mcp.context7.com/mcp",
+      "headers": {
+        "CONTEXT7_API_KEY": "ctx7sk-1aeed0d8-8906-463a-9ec0-784e536156f3"
+      }
+    }
+  }
+}