[RG][ZSH] Add ripgrep config skipping *venv dirs

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.config/ripgrep/config

@@ -0,0 +1,6 @@
+# Loaded via RIPGREP_CONFIG_PATH (zsh/.zshrc). Hidden dirs (.venv, .claude,
+# .codex) are skipped by default; -uu searches everything.
+--smart-case
+--glob=!*venv/
+--glob=!node_modules/
+--glob=!__pycache__/