Bold the first line of commit messages in generated markdown

- first line of the commit message should be wrapped in **[first line of the commit message]**

└── apps
    └── editor
        └── src
            ├── utils
            │   ├── ascii-tree
            │   │   └── ascii-tree.ts
            │   └── git-repository-utils.ts
            └── views
                └── prompt
                    └── backend
                        └── utils
                            └── symbols
                                ├── fragment
                                │   └── replace-fragment-symbol.ts
                                ├── git
                                │   └── replace-git-symbols.ts
                                ├── image
                                │   └── replace-image-symbol.ts
                                ├── pasted-text
                                │   └── replace-pasted-text-symbol.ts
                                ├── replace-symbols.ts
                                ├── saved-context
                                │   └── replace-saved-context-symbol.ts
                                ├── selection
                                │   └── replace-selection-symbol.ts
                                ├── skill
                                │   └── replace-skill-symbol.ts
                                └── website
                                    └── replace-website-symbol.ts

Author: robertpiosik

apps/editor/src/views/prompt/backend/utils/symbols/git/replace-git-symbols.ts

@@ -410,7 +410,16 @@ const build_commit_changes_markdown = (
   if (changes_content) {
     const short_hash = commit_hash.substring(0, 7)
     const title_text = `Commit ${short_hash}`
-    const msg_text = commit_message ? `${commit_message}\n\n` : ''
+    let msg_text = ''
+    if (commit_message) {
+      const trimmed = commit_message.trim()
+      if (trimmed) {
+        const lines = trimmed.split('\n')
+        const first_line = `**${lines[0].trim()}**`
+        const rest = lines.slice(1).join('\n')
+        msg_text = `${rest ? `${first_line}\n${rest}` : first_line}\n\n`
+      }
+    }
     return `# ${title_text}\n\n${msg_text}${changes_content}`
   }
   return ''