Add workspace utility scripts

- llm: Local LLM wrapper for llama-swap
- homelab-status: Quick K8s/cluster health check
- calc: Python/JS REPL for quick calculations
- transcribe: Whisper audio transcription wrapper

Added to fish PATH.

scripts/calc

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+# Quick code execution for calculations and data processing
+# Usage: calc "expression"
+#        calc -p "python code"
+#        calc -j "javascript code"
+
+set -e
+
+MODE="python"
+CODE=""
+
+show_help() {
+  echo "Usage: calc [options] \"code\""
+  echo ""
+  echo "Options:"
+  echo "  -p, --python    Python mode (default)"
+  echo "  -j, --js        JavaScript mode (Node.js)"
+  echo "  -h, --help      Show this help"
+  echo ""
+  echo "Examples:"
+  echo "  calc \"2 + 2\"                    # Quick math"
+  echo "  calc \"sum([1,2,3,4,5])\"         # Python functions"
+  echo "  calc -p \"import math; math.pi\"  # Python with imports"
+  echo "  calc -j \"[1,2,3].map(x => x*2)\" # JavaScript"
+  echo ""
+  echo "Python mode has these pre-imported:"
+  echo "  math, json, re, datetime, random, statistics"
+}
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -p|--python)
+      MODE="python"
+      shift
+      ;;
+    -j|--js)
+      MODE="js"
+      shift
+      ;;
+    -h|--help)
+      show_help
+      exit 0
+      ;;
+    *)
+      if [[ -z "$CODE" ]]; then
+        CODE="$1"
+      else
+        CODE="$CODE $1"
+      fi
+      shift
+      ;;
+  esac
+done
+
+if [[ -z "$CODE" ]]; then
+  show_help
+  exit 1
+fi
+
+case $MODE in
+  python)
+    python3 -c "
+import math, json, re, sys
+from datetime import datetime, date, timedelta
+from random import random, randint, choice
+from statistics import mean, median
+from collections import Counter, defaultdict
+result = $CODE
+if result is not None: print(result)
+"
+    ;;
+  
+  js)
+    node -e "console.log($CODE)"
+    ;;
+esac