feat(utils): add function to derive sanitized job names

- Introduces a utility function to extract and sanitize job names
  from executable paths by removing paths, extensions, and special
  characters.
- Adds unit tests to validate function behavior with various inputs.

src/utils/__tests__/misc.test.ts

@@ -0,0 +1,19 @@
+import { assertEquals } from 'https://deno.land/std@0.224.0/assert/mod.ts';
+import { deriveNameFromExec } from '../mod.ts';
+
+Deno.test('deriveNameFromExec - entfernt Pfad, Endung und Sonderzeichen', () => {
+    const tests: Array<[string, string]> = [
+        ['/usr/local/bin/backup.sh', 'backup'],
+        ['/usr/bin/python3 /home/user/myscript.py', 'python3'],
+        ['./my-job.ts', 'my-job'],
+        ['node ./tools/start.js', 'node'],
+        ['/bin/custom-script.rb', 'custom-script'],
+        ['  /usr/bin/something-strange!.bin  ', 'something-strange'],
+        ['weird:name?.sh', 'weird-name'],
+        ['', 'job'],
+    ];
+
+    for (const [input, expected] of tests) {
+        assertEquals(deriveNameFromExec(input), expected);
+    }
+});

src/utils/misc.ts

@@ -0,0 +1,12 @@
+export function deriveNameFromExec(exec: string): string {
+    const parts = exec.trim().split(' ');
+    const base = parts[0].split('/').pop() || 'job';
+
+    // remove the file extension
+    const withoutExt = base.replace(/\.(sh|py|ts|js|pl|rb|exe|bin)$/, '');
+
+    // replace illegal chars, then trim leading/trailing hyphens
+    return withoutExt
+        .replaceAll(/[^a-zA-Z0-9_-]/g, '-')
+        .replace(/^-+|-+$/g, '');
+}