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/js_wrappers.nim

@@ -0,0 +1,19 @@
+# JS-friendly wrappers around Clojure-generated code
+# These expose plain JS types (number, string) instead of CljVal
+
+import cljnim_runtime_js
+
+# Import the generated Clojure functions
+include build/math
+
+proc jsSquare*(x: int): int {.exportc.} =
+  let r = square(cljInt(x.int64))
+  return r.intVal.int
+
+proc jsFactorial*(n: int): int {.exportc.} =
+  let r = factorial(cljInt(n.int64))
+  return r.intVal.int
+
+proc jsGreet*(name: cstring): cstring {.exportc.} =
+  let r = greet(cljString($name))
+  return r.strVal.cstring