chore(release): bump version to 0.3.8

Bumping to v0.3.8 with git tweaks and doc updates.

### Added
- Add changelog entry for v0.3.7.

### Changed
- Update version to 0.3.8 in README installation instructions.
- Update bash and powershell scripts to reference new release version.
- Update git diff command to prefer remote origin/base branch.
- Fall back to local base branch if remote diff fails or is empty.

CHANGELOG.md

@@ -1,3 +1,15 @@
+## [v0.3.8] - 2026-03-31
+
+Bumping to v0.3.8 with git tweaks and doc updates.
+
+### Added
+- Add changelog entry for v0.3.7.
+
+### Changed
+- Update version to 0.3.8 in README installation instructions.
+- Update bash and powershell scripts to reference new release version.
+- Update git diff command to prefer remote origin/base branch.
+- Fall back to local base branch if remote diff fails or is empty.
 ## [v0.3.7] - 2026-03-31
 
 Version v0.3.7: Patchin' up git diffs because exit codes shouldn't be drama queens.

README.md

@@ -19,13 +19,13 @@ Grokkit is a fast Go CLI integrating Grok AI with git workflows and general chat
 
 **Bash (Linux/macOS):**
 ```bash
-export VERSION=0.3.7
+export VERSION=0.3.8
 curl -fsSL https://repos.gmgauthier.com/gmgauthier/grokkit/releases/download/v${VERSION}/grokkit-install.sh | bash -s -- --verify
 ```
 
 **PowerShell (Windows):**
 ```pwsh
-$env:VERSION="0.3.7"
+$env:VERSION="0.3.8"
  irm https://repos.gmgauthier.com/gmgauthier/grokkit/releases/download/v$env:VERSION/grokkit-install.ps1 | iex
 ```
 
@@ -40,7 +40,7 @@ Both installers feature:
 **Bash (Linux/macOS):**
 
 ```bash
-export VERSION=0.3.7
+export VERSION=0.3.8
 curl -fsSL https://repos.gmgauthier.com/gmgauthier/grokkit/releases/download/v${VERSION}/grokkit-install.sh -o grokkit-install.sh
 bash grokkit-install.sh --verify
 ```
@@ -48,7 +48,7 @@ bash grokkit-install.sh --verify
 **PowerShell (Windows):**
 
 ```pwsh
-$env:VERSION="0.3.7"
+$env:VERSION="0.3.8"
  irm https://repos.gmgauthier.com/gmgauthier/grokkit/releases/download/v$env:VERSION/grokkit-install.ps1 -OutFile grokkit-install.ps1
  .\grokkit-install.ps1 -Verify
 ```

cmd/prdescribe.go

@@ -26,10 +26,10 @@ func init() {
 func runPRDescribe(cmd *cobra.Command, _ []string) {
 	base, _ := cmd.Flags().GetString("base")
 
-	// Prefer local base, fallback to origin/<base>.
+	// Prefer remote (more likely up-to-date for PRs), fallback to local.
-	diff, err := gitDiff([]string{"diff", fmt.Sprintf("%s..HEAD", base), "--no-color"})
+	diff, err := gitDiff([]string{"diff", fmt.Sprintf("origin/%s..HEAD", base), "--no-color"})
 	if err != nil || strings.TrimSpace(diff) == "" {
-		diff, err = gitDiff([]string{"diff", fmt.Sprintf("origin/%s..HEAD", base), "--no-color"})
+		diff, err = gitDiff([]string{"diff", fmt.Sprintf("%s..HEAD", base), "--no-color"})
 		if err != nil {
 			color.Red("Failed to get branch diff: %v", err)
 			return