Finch 1.0.0

A small, fast programming language on LLVM with C-like syntax.

- Lexer, recursive-descent parser, single-pass type checker + LLVM IR codegen, O2 pipeline
- Types: int/float/bool/char/str, sized i8..u64/f32/f64, pointers ptr[T] with addr()/.value/null
- Functions (fn ... -> T), if/else, while, for..in, break/continue, Go-style operator precedence
- Implicit conversions only when lossless; literals adapt to their target type
- Runtime checks for division by zero, MIN/-1 and null .value
- C interop: import "header.h" via libclang, link "lib" with pkg-config, link-error advice
- Human-readable errors with source excerpts
- Test suite (34 tests), examples, docs for beginners/technicians/engineers in English and Polish

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/run/control.fn

@@ -0,0 +1,42 @@
+fn classify(int n) -> str {
+    if n < 0 {
+        return "negative"
+    } else if n == 0 {
+        return "zero"
+    } else {
+        return "positive"
+    }
+}
+
+fn main() {
+    print(classify(-5), classify(0), classify(5))
+
+    total := 0
+    for i in 0..100 {
+        if i % 2 == 0 {
+            continue
+        }
+        if i > 10 {
+            break
+        }
+        total += i
+    }
+    print("odd sum below 10:", total)
+
+    n := 0
+    while true {
+        n += 1
+        if n == 5 {
+            break
+        }
+    }
+    print("n:", n)
+
+    for i in 3..3 {
+        print("never")
+    }
+    {
+        inner := "blocks have their own scope"
+        print(inner)
+    }
+}