Allow deleting projects from the project picker with x/X.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/project/store.go

@@ -11,6 +11,7 @@ import (
 type Store interface {
 	List() ([]Project, error)
 	Ensure(id string) error
+	Delete(id string) error
 }
 
 // DirStore discovers projects as subdirectories of dataDir/projects.
@@ -63,3 +64,25 @@ func (s *DirStore) Ensure(id string) error {
 	}
 	return nil
 }
+
+// Delete removes the project directory and all of its files.
+func (s *DirStore) Delete(id string) error {
+	if id == "" {
+		return fmt.Errorf("project id is required")
+	}
+	dir := filepath.Join(s.projectsRoot(), id)
+	st, err := os.Stat(dir)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return fmt.Errorf("project %s: not found", id)
+		}
+		return fmt.Errorf("stat project %s: %w", id, err)
+	}
+	if !st.IsDir() {
+		return fmt.Errorf("project %s: not a directory", id)
+	}
+	if err := os.RemoveAll(dir); err != nil {
+		return fmt.Errorf("delete project %s: %w", id, err)
+	}
+	return nil
+}

internal/project/store_test.go

@@ -0,0 +1,46 @@
+package project_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"task/internal/project"
+)
+
+func TestDirStoreDelete(t *testing.T) {
+	dir := t.TempDir()
+	store := project.NewDirStore(dir)
+
+	if err := store.Ensure("inbox"); err != nil {
+		t.Fatal(err)
+	}
+	if err := store.Ensure("client"); err != nil {
+		t.Fatal(err)
+	}
+	// Drop a marker file so RemoveAll has something to wipe.
+	marker := filepath.Join(dir, "projects", "client", "tickets.json")
+	if err := os.WriteFile(marker, []byte("[]\n"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	list, err := store.List()
+	if err != nil || len(list) != 2 {
+		t.Fatalf("list before: %v len=%d", err, len(list))
+	}
+
+	if err := store.Delete("client"); err != nil {
+		t.Fatal(err)
+	}
+	list, err = store.List()
+	if err != nil || len(list) != 1 || list[0].ID != "inbox" {
+		t.Fatalf("list after: %v %+v", err, list)
+	}
+	if _, err := os.Stat(filepath.Join(dir, "projects", "client")); !os.IsNotExist(err) {
+		t.Fatalf("client dir still present: %v", err)
+	}
+
+	if err := store.Delete("missing"); err == nil {
+		t.Fatal("expected error deleting missing project")
+	}
+}