claude-code: mark hook scripts executable

Inline hooks are scripts, so write them with the executable bit set. Add NMT assertions covering default and custom config directories.

(cherry picked from commit d0af9b8bf3)

modules/programs/claude-code.nix

@@ -558,10 +558,14 @@ in
           name: content: nameValuePair "${cfg.configDir}/${subdir}/${name}.md" (mkSourceEntry content)
         ) attrs;
 
-      mkTextEntries =
-        subdir: attrs:
+      mkHookEntries =
+        attrs:
         lib.mapAttrs' (
-          name: content: nameValuePair "${cfg.configDir}/${subdir}/${name}" { text = content; }
+          name: content:
+          nameValuePair "${cfg.configDir}/hooks/${name}" {
+            text = content;
+            executable = true;
+          }
         ) attrs;
 
       mkRecursiveDirAttrs =
@@ -727,7 +731,7 @@ in
               recursive = true;
             };
           })
-          (mkTextEntries "hooks" cfg.hooks)
+          (mkHookEntries cfg.hooks)
           (lib.optionalAttrs (builtins.isAttrs cfg.skills) (lib.mapAttrs' mkSkillEntry cfg.skills))
           (mkMarkdownEntries "output-styles" cfg.outputStyles)
         ];

tests/modules/programs/claude-code/config-dir.nix

@@ -66,6 +66,7 @@
     assertFileExists home-files/.config/claude/commands/hello.md
     assertFileExists home-files/.config/claude/rules/style.md
     assertFileExists home-files/.config/claude/hooks/pre-edit
+    assertFileIsExecutable home-files/.config/claude/hooks/pre-edit
     assertFileExists home-files/.config/claude/output-styles/concise.md
     assertFileExists home-files/.config/claude/skills/pdf/SKILL.md
 

tests/modules/programs/claude-code/full-config.nix

@@ -135,9 +135,11 @@
     assertFileContent home-files/.claude/commands/commit.md ${./expected-commit}
 
     assertFileExists home-files/.claude/hooks/pre-edit
+    assertFileIsExecutable home-files/.claude/hooks/pre-edit
     assertFileRegex home-files/.claude/hooks/pre-edit "About to edit file"
 
     assertFileExists home-files/.claude/hooks/post-commit
+    assertFileIsExecutable home-files/.claude/hooks/post-commit
     assertFileRegex home-files/.claude/hooks/post-commit "Committed with message"
   '';
 }