fix: respect sync.remote config in bd sync (GH#872, bd-ypvj)

The sync.remote config was being set via `bd config set sync.remote <name>`
but `bd sync` was still using 'origin' for git pull/push operations.

Changes:
- Updated gitPull() and gitPush() in sync_git.go to accept a configuredRemote
  parameter that takes precedence over git's branch tracking config
- Updated sync.go to read sync.remote config and pass it to gitPull/gitPush
- Updated daemon_sync.go to read sync.remote config for all daemon sync ops
- Added user-facing messages to show which remote is being used

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Executed-By: beads/crew/dave
Rig: beads
Role: crew

cmd/bd/sync_git.go

@@ -327,6 +327,85 @@ func runGitRebaseContinue(ctx context.Context) error {
 
 // gitPull pulls from the current branch's upstream
 // Returns nil if no remote configured (local-only mode)
+// If configuredRemote is non-empty, uses that instead of the branch's configured remote.
+// This allows respecting the sync.remote bd config.
+func gitPull(ctx context.Context, configuredRemote string) error {
+	// Check if any remote exists (support local-only repos)
+	if !hasGitRemote(ctx) {
+		return nil // Gracefully skip - local-only mode
+	}
+
+	// Get current branch name
+	// Use symbolic-ref to work in fresh repos without commits
+	branchCmd := exec.CommandContext(ctx, "git", "symbolic-ref", "--short", "HEAD")
+	branchOutput, err := branchCmd.Output()
+	if err != nil {
+		return fmt.Errorf("failed to get current branch: %w", err)
+	}
+	branch := strings.TrimSpace(string(branchOutput))
+
+	// Determine remote to use:
+	// 1. If configuredRemote (from sync.remote bd config) is set, use that
+	// 2. Otherwise, get from git branch tracking config
+	// 3. Fall back to "origin"
+	remote := configuredRemote
+	if remote == "" {
+		remoteCmd := exec.CommandContext(ctx, "git", "config", "--get", fmt.Sprintf("branch.%s.remote", branch)) //nolint:gosec // G204: branch from git symbolic-ref
+		remoteOutput, err := remoteCmd.Output()
+		if err != nil {
+			// If no remote configured, default to "origin"
+			remote = "origin"
+		} else {
+			remote = strings.TrimSpace(string(remoteOutput))
+		}
+	}
+
+	// Pull with explicit remote and branch
+	cmd := exec.CommandContext(ctx, "git", "pull", remote, branch) //nolint:gosec // G204: remote/branch from git config, not user input
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("git pull failed: %w\n%s", err, output)
+	}
+	return nil
+}
+
+// gitPush pushes to the current branch's upstream
+// Returns nil if no remote configured (local-only mode)
+// If configuredRemote is non-empty, pushes to that remote explicitly.
+// This allows respecting the sync.remote bd config.
+func gitPush(ctx context.Context, configuredRemote string) error {
+	// Check if any remote exists (support local-only repos)
+	if !hasGitRemote(ctx) {
+		return nil // Gracefully skip - local-only mode
+	}
+
+	// If configuredRemote is set, push explicitly to that remote with current branch
+	if configuredRemote != "" {
+		// Get current branch name
+		branchCmd := exec.CommandContext(ctx, "git", "symbolic-ref", "--short", "HEAD")
+		branchOutput, err := branchCmd.Output()
+		if err != nil {
+			return fmt.Errorf("failed to get current branch: %w", err)
+		}
+		branch := strings.TrimSpace(string(branchOutput))
+
+		cmd := exec.CommandContext(ctx, "git", "push", configuredRemote, branch) //nolint:gosec // G204: configuredRemote from bd config
+		output, err := cmd.CombinedOutput()
+		if err != nil {
+			return fmt.Errorf("git push failed: %w\n%s", err, output)
+		}
+		return nil
+	}
+
+	// Default: use git's default push behavior
+	cmd := exec.CommandContext(ctx, "git", "push")
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("git push failed: %w\n%s", err, output)
+	}
+	return nil
+}
+
 func checkMergeDriverConfig() {
 	// Get current merge driver configuration
 	cmd := exec.Command("git", "config", "merge.beads.driver")
@@ -349,55 +428,6 @@ func checkMergeDriverConfig() {
 	}
 }
 
-func gitPull(ctx context.Context) error {
-	// Check if any remote exists (support local-only repos)
-	if !hasGitRemote(ctx) {
-		return nil // Gracefully skip - local-only mode
-	}
-
-	// Get current branch name
-	// Use symbolic-ref to work in fresh repos without commits
-	branchCmd := exec.CommandContext(ctx, "git", "symbolic-ref", "--short", "HEAD")
-	branchOutput, err := branchCmd.Output()
-	if err != nil {
-		return fmt.Errorf("failed to get current branch: %w", err)
-	}
-	branch := strings.TrimSpace(string(branchOutput))
-
-	// Get remote name for current branch (usually "origin")
-	remoteCmd := exec.CommandContext(ctx, "git", "config", "--get", fmt.Sprintf("branch.%s.remote", branch)) //nolint:gosec // G204: branch from git symbolic-ref
-	remoteOutput, err := remoteCmd.Output()
-	if err != nil {
-		// If no remote configured, default to "origin"
-		remoteOutput = []byte("origin\n")
-	}
-	remote := strings.TrimSpace(string(remoteOutput))
-
-	// Pull with explicit remote and branch
-	cmd := exec.CommandContext(ctx, "git", "pull", remote, branch) //nolint:gosec // G204: remote/branch from git config, not user input
-	output, err := cmd.CombinedOutput()
-	if err != nil {
-		return fmt.Errorf("git pull failed: %w\n%s", err, output)
-	}
-	return nil
-}
-
-// gitPush pushes to the current branch's upstream
-// Returns nil if no remote configured (local-only mode)
-func gitPush(ctx context.Context) error {
-	// Check if any remote exists (support local-only repos)
-	if !hasGitRemote(ctx) {
-		return nil // Gracefully skip - local-only mode
-	}
-
-	cmd := exec.CommandContext(ctx, "git", "push")
-	output, err := cmd.CombinedOutput()
-	if err != nil {
-		return fmt.Errorf("git push failed: %w\n%s", err, output)
-	}
-	return nil
-}
-
 // restoreBeadsDirFromBranch restores .beads/ directory from the current branch's committed state.
 // This is used after sync when sync.branch is configured to keep the working directory clean.
 // The actual beads data lives on the sync branch; the main branch's .beads/ is just a snapshot.