chore: rebrand Clojure/Nim → Bara Lang across codebase

- Bulk replace Clojure/Nim → Bara Lang in src/, lib/, examples/, benchmarks/,
  experiments/, books/, LICENSE, cljnim.nimble, PLAN.md, AI_AGENT.md
- Rename book chapters: 05-clojure-nim.md → 05-bara-lang.md (en + bg)
- Update all chapter index links and anchors
- Replace project-specific 'Clojure' references with 'Bara Lang' in
  experiments/, src/ai_assist.nim, src/tui_screens.nim, src/emitter.nim,
  src/reader.nim, src/types.nim, lib/cljnim_runtime*.nim
- Keep legitimate JVM Clojure/ClojureScript/Clojure CLR references intact

experiments/native-lib/README.md

@@ -1,12 +1,12 @@
-# Clojure/Nim → Native Shared Library
+# Bara Lang → Native Shared Library
 
-Compile Clojure code to a C shared library (`.so` / `.dll` / `.dylib`).
+Compile Bara Lang code to a C shared library (`.so` / `.dll` / `.dylib`).
 
 ## Why?
 
-- **Embed Clojure in Python/Rust/Go/C** via FFI
+- **Embed Bara Lang in Python/Rust/Go/C** via FFI
 - **Tiny binaries** — no JVM overhead
-- **True C ABI** — call Clojure functions from any language
+- **True C ABI** — call Bara Lang functions from any language
 
 ## Quick Start
 

experiments/native-lib/build/math.nim

@@ -1,4 +1,4 @@
-# Generated by Clojure/Nim
+# Generated by Bara Lang
 import cljnim_runtime
 
 proc square*(x: CljVal): CljVal =

experiments/native-lib/native_wrappers.nim

@@ -1,9 +1,9 @@
-# C-friendly wrappers around Clojure-generated code
+# C-friendly wrappers around Bara Lang-generated code
 # Exports plain C types (int, char*) instead of CljVal
 
 import cljnim_runtime
 
-# Import the generated Clojure functions
+# Import the generated Bara Lang functions
 include build/math
 
 proc c_square*(x: cint): cint {.exportc, dynlib.} =

experiments/native-lib/test_client/main.c

@@ -12,13 +12,13 @@ extern void NimMain(void);
 int main(void) {
     NimMain();
 
-    printf("=== Clojure/Nim Native Library Test ===\n\n");
+    printf("=== Bara Lang Native Library Test ===\n\n");
 
     printf("c_square(7) = %d\n", c_square(7));
     printf("c_add(10, 20) = %d\n", c_add(10, 20));
     printf("c_factorial(5) = %d\n", c_factorial(5));
     printf("c_greet(\"World\") = %s\n", c_greet("World"));
 
-    printf("\nAll tests passed! Clojure in a .so file.\n");
+    printf("\nAll tests passed! Bara Lang in a .so file.\n");
     return 0;
 }