feat: add fullscreen TUI and project updates

- New TUI screens: Main Menu, Compile, Run, REPL, AI Generator, AI Settings, Help
- AI configuration persisted in ~/.config/cljnim/config.json
- Added illwill dependency for terminal UI
- Updated experiments, examples, docs, and core modules

experiments/web-target/build.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+CLJNIM="${SCRIPT_DIR}/../../cljnim"
+LIB_PATH="${SCRIPT_DIR}/../../lib"
+
+mkdir -p "${SCRIPT_DIR}/build"
+
+echo "=== Step 1: Clojure → Nim ==="
+"$CLJNIM" compile-lib \
+  "${SCRIPT_DIR}/examples/math.clj" \
+  "${SCRIPT_DIR}/build/math.nim"
+
+echo "=== Step 2: Patch runtime for JS ==="
+sed -i 's/import cljnim_runtime/import cljnim_runtime_js/' "${SCRIPT_DIR}/build/math.nim"
+
+echo "=== Step 3: Nim → JavaScript ==="
+cd "$SCRIPT_DIR" && nim js -d:release \
+  --path:"$LIB_PATH" \
+  --path:"build" \
+  -o:"build/math.js" \
+  "js_wrappers.nim"
+
+echo "=== Step 3: Generated files ==="
+ls -la "${SCRIPT_DIR}/build/"
+echo ""
+echo "JS: ${SCRIPT_DIR}/build/math.js"
+echo ""
+echo "Open ${SCRIPT_DIR}/www/index.html in a browser to test"