fix: handle git name and email restore independently

Previously stepRestoreGit only restored when both name and email were
missing. Now each field is checked independently, fixing cases where
only one was already configured.

Author: fullstackjam

AGENTS.md

@@ -113,7 +113,7 @@ go vet ./...                  # Lint check
 Tag-driven. CI handles everything. **Never edit root.go for version bumps.**
 
 ```bash
-git tag v0.19.0
+git tag v0.24.0
 git push --tags
 # CI builds binaries with version injected via ldflags, creates GitHub release
 ```
@@ -124,6 +124,91 @@ git push --tags
 
 **When to release**: Only for user-facing changes (features, bug fixes, package updates). Skip for docs, AGENTS.md, CI config, test-only changes.
 
+### Writing Release Notes (Changelog)
+
+CI creates a release with a generic install-only body. After CI completes, update it with a proper changelog using `gh release edit`.
+
+**Step 1: Gather commits since last release**
+
+```bash
+PREV_TAG=$(git tag --sort=-v:refname | sed -n '2p')
+git log ${PREV_TAG}..HEAD --oneline
+```
+
+**Step 2: Write the changelog**
+
+Follow this exact format:
+
+```markdown
+## What's New
+- **Feature name** — One sentence user-facing description (`openboot <command>`)
+- **Feature name** — One sentence user-facing description
+
+## Improvements
+- **Area** — What changed and why users care
+
+## Bug Fixes
+- **What was broken** — What's fixed now
+
+## Installation
+
+\`\`\`bash
+curl -fsSL https://openboot.dev/install | bash
+\`\`\`
+
+## Binaries
+
+| Platform | Architecture | Download |
+|----------|--------------|----------|
+| macOS | Apple Silicon (M1/M2/M3) | `openboot-darwin-arm64` |
+| macOS | Intel | `openboot-darwin-amd64` |
+```
+
+**Rules:**
+
+- Omit empty sections (no "Bug Fixes" if there are none)
+- Write for **users**, not developers. No internal refactors, no test-only changes
+- Each bullet is one line, starts with **bold name** — description
+- Include the CLI command if it's a new/changed command
+- Keep Installation and Binaries sections at the bottom (always)
+
+**Step 3: Update the release on GitHub**
+
+```bash
+gh release edit v0.24.0 --repo openbootdotdev/openboot --notes "$(cat <<'EOF'
+## What's New
+- ...
+
+## Installation
+...
+EOF
+)"
+```
+
+**Example (v0.24.0):**
+
+```markdown
+## What's New
+- **Clean command** — Remove packages not in your config or snapshot (`openboot clean`)
+- **Full snapshot restore** — Importing a snapshot now restores git identity, Oh-My-Zsh theme, and plugins
+
+## Improvements
+- **Brew & npm uninstall** — Internal support for package removal, used by `openboot clean`
+
+## Installation
+
+\`\`\`bash
+curl -fsSL https://openboot.dev/install | bash
+\`\`\`
+
+## Binaries
+
+| Platform | Architecture | Download |
+|----------|--------------|----------|
+| macOS | Apple Silicon (M1/M2/M3) | `openboot-darwin-arm64` |
+| macOS | Intel | `openboot-darwin-amd64` |
+```
+
 ## NOTES
 
 - **macOS only**: No Linux/Windows support. darwin binaries only.

internal/installer/installer.go

@@ -761,13 +761,22 @@ func stepRestoreGit(cfg *config.Config) error {
 		return nil
 	}
 
+	nameToSet := existingName
+	emailToSet := existingEmail
 	if existingName == "" && git.UserName != "" {
-		if err := system.ConfigureGit(git.UserName, git.UserEmail); err != nil {
+		nameToSet = git.UserName
+	}
+	if existingEmail == "" && git.UserEmail != "" {
+		emailToSet = git.UserEmail
+	}
+
+	if nameToSet != existingName || emailToSet != existingEmail {
+		if err := system.ConfigureGit(nameToSet, emailToSet); err != nil {
 			return fmt.Errorf("failed to restore git config: %w", err)
 		}
 	}
 
-	ui.Success(fmt.Sprintf("Git restored: %s <%s>", git.UserName, git.UserEmail))
+	ui.Success(fmt.Sprintf("Git restored: %s <%s>", nameToSet, emailToSet))
 	fmt.Println()
 	return nil
 }