Add Zig and PowerShell language support

tests/fixtures/sample.ps1

@@ -0,0 +1,32 @@
+using namespace System.IO
+using module MyModule
+
+function Get-Data {
+    param(
+        [string]$Name,
+        [int]$Count = 10
+    )
+    $result = Process-Items -Name $Name -Count $Count
+    return $result
+}
+
+function Process-Items {
+    param([string]$Name, [int]$Count)
+    Write-Output "Processing $Count items for $Name"
+}
+
+class DataProcessor {
+    [string]$Source
+
+    DataProcessor([string]$source) {
+        $this.Source = $source
+    }
+
+    [string] Transform([string]$input) {
+        return $input.ToUpper()
+    }
+
+    [void] Save([string]$path) {
+        Set-Content -Path $path -Value $this.Source
+    }
+}

tests/fixtures/sample.zig

@@ -0,0 +1,37 @@
+const std = @import("std");
+const mem = @import("std").mem;
+
+const Point = struct {
+    x: f64,
+    y: f64,
+
+    pub fn distance(self: Point, other: Point) f64 {
+        const dx = self.x - other.x;
+        const dy = self.y - other.dy;
+        return std.math.sqrt(dx * dx + dy * dy);
+    }
+};
+
+const Color = enum {
+    red,
+    green,
+    blue,
+};
+
+const Shape = union(enum) {
+    circle: f64,
+    rect: Point,
+};
+
+pub fn add(a: i32, b: i32) i32 {
+    return a + b;
+}
+
+pub fn multiply(a: i32, b: i32) i32 {
+    return a * b;
+}
+
+pub fn main() void {
+    const result = add(1, 2);
+    _ = multiply(result, 3);
+}

tests/test_extract.py

@@ -61,7 +61,7 @@ def test_collect_files_from_dir():
     supported = {".py", ".js", ".ts", ".tsx", ".go", ".rs",
                  ".java", ".c", ".cpp", ".cc", ".cxx", ".rb",
                  ".cs", ".kt", ".kts", ".scala", ".php", ".h", ".hpp",
-                 ".swift"}
+                 ".swift", ".lua", ".toc", ".zig", ".ps1"}
     assert all(f.suffix in supported for f in files)
     assert len(files) > 0