feat: AI-assisted compilation and code generation

- New src/ai_assist.nim module with DeepSeek/OpenAI/MiMo API support
- AI explains compiler errors automatically when compilation fails
- New CLI command: cljnim ai '<description>' for code generation
- REPL :ai command for interactive AI assistance
- API keys read from environment vars (DEEPSEEK_API_KEY, OPENAI_API_KEY, MIMO_API_KEY)
- Tests for prompt building and response formatting
- Updated README with AI integration docs

Makefile

@@ -1,9 +1,9 @@
-.PHONY: build test clean run-example bench bench-aot
+.PHONY: build test check clean run-example bench bench-aot
 
 NIMCACHE = nimcache
 
 build:
-	nim c -o:cljnim src/cljnim.nim
+	nim c -d:ssl -o:cljnim src/cljnim.nim
 
 test:
 	nim c -r tests/test_reader.nim
@@ -11,7 +11,9 @@ test:
 	nim c -r tests/test_pvec.nim
 	nim c -r tests/test_pmap.nim
 	nim c -r tests/test_deps.nim
+	nim c -r tests/test_macros.nim
 	nim c -r tests/test_eval.nim
+	nim c --path:src -r tests/test_ai_assist.nim
 
 test-reader:
 	nim c -r tests/test_reader.nim
@@ -19,6 +21,13 @@ test-reader:
 test-emitter:
 	nim c -r tests/test_emitter.nim
 
+check: build test
+	./cljnim run examples/hello.clj
+	./cljnim run examples/math.clj
+	./cljnim run examples/core.clj
+	./cljnim run examples/interop.clj
+	./cljnim run examples/macros.clj
+
 run-example: build
 	./cljnim run examples/hello.clj
 
@@ -36,3 +45,8 @@ clean:
 	find . -name "test_reader" -delete
 	find . -name "test_emitter" -delete
 	find . -name "test_deps" -delete
+	find . -name "test_pvec" -delete
+	find . -name "test_pmap" -delete
+	find . -name "test_eval" -delete
+	find . -name "test_macros" -delete
+	find . -name "test_ai_assist" -delete