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/README.md

@@ -0,0 +1,71 @@
+# Clojure/Nim Experiments
+
+Unconventional compilation targets that JVM Clojure cannot do.
+
+## Projects
+
+| Experiment | Status | Description |
+|---|---|---|
+| `web-target/` | ✅ Working | Clojure → Nim → JavaScript for browsers |
+| `native-lib/` | ✅ Working | Clojure → Nim → C shared library (.so) |
+| `wasm-target/` | 🏗️ Skeleton | Clojure → Nim → WASM via Emscripten |
+
+## web-target — Clojure in the Browser
+
+```bash
+cd web-target
+./build.sh
+node -e "require('./build/math.js'); console.log(jsSquare(7))"
+# → 49
+```
+
+**Unique:** No JVM, no JavaScript source code — pure Clojure compiled to JS.
+
+## native-lib — Clojure as a C Library
+
+```bash
+cd native-lib
+./build.sh
+cd test_client && make && LD_LIBRARY_PATH=../build ./test_client
+# → c_square(7) = 49
+# → c_factorial(5) = 120
+```
+
+**Unique:** Call Clojure functions from Python, Rust, Go, C via FFI.
+
+## wasm-target — Clojure at Native Speed in Browser
+
+```bash
+cd wasm-target
+# Install Emscripten first, then:
+./build.sh
+# Open www/index.html in browser
+```
+
+**Unique:** Clojure running as WebAssembly — faster than ClojureScript, smaller than JVM.
+
+## Architecture
+
+All experiments share the same pipeline:
+
+```
+Clojure Source (.clj)
+       ↓
+   cljnim compile-lib
+       ↓
+   Nim Source (.nim) with exported procs
+       ↓
+   Target-specific wrapper
+       ↓
+   nim c --target=...
+       ↓
+   JS / .so / .wasm
+```
+
+## Adding a New Experiment
+
+1. Create a folder: `experiments/my-target/`
+2. Write Clojure example in `examples/`
+3. Write Nim wrapper in `my_wrappers.nim`
+4. Write `build.sh` using `cljnim compile-lib`
+5. Add row to the table above