diff --git a/.beads/issues.jsonl b/.beads/issues.jsonl
index fa20914..7b0df38 100644
--- a/.beads/issues.jsonl
+++ b/.beads/issues.jsonl
@@ -16,7 +16,7 @@
 {"id":"kanboard-api-k33","title":"Implement authentication system","description":"Implement HTTP Basic Auth support for both API token and user/password authentication.\n\n## Requirements\n- Authenticator interface for auth strategies\n- API Token auth: HTTP Basic with username `jsonrpc` and API token as password\n- User/Password auth: HTTP Basic with username and password\n- WithAPIToken(token string) fluent method\n- WithBasicAuth(username, password string) fluent method\n- Secure handling - no credential storage/logging\n\n## Files to create\n- auth.go\n\n## Acceptance criteria\n- Both auth methods work correctly\n- Credentials properly encoded in Authorization header\n- No sensitive data logged","status":"closed","priority":0,"issue_type":"feature","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:34:53.631074781+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T18:11:42.58778642+01:00","closed_at":"2026-01-15T18:11:42.58778642+01:00","close_reason":"Closed"}
 {"id":"kanboard-api-l72","title":"Implement global task search with parallel execution","description":"Implement cross-project task search with parallel execution.\n\n## Method to implement\n- SearchTasksGlobally(ctx, query string) ([]Task, error)\n\n## Workflow\n1. Get all projects via getAllProjects\n2. Execute searchTasks for each project in parallel (errgroup)\n3. Aggregate and return all results\n4. Respect context cancellation\n\n## Implementation details\n- Use golang.org/x/sync/errgroup for parallel execution\n- Results channel to collect tasks\n- Handle errors from any project search\n- Context propagation for cancellation\n\n## Files to modify\n- tasks.go\n\n## Acceptance criteria\n- Parallel execution improves performance\n- Context cancellation stops all goroutines\n- Single project failure cancels remaining searches","status":"closed","priority":1,"issue_type":"feature","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:36:29.533649255+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T18:40:08.288405499+01:00","closed_at":"2026-01-15T18:40:08.288405499+01:00","close_reason":"Closed","dependencies":[{"issue_id":"kanboard-api-l72","depends_on_id":"kanboard-api-apl","type":"blocks","created_at":"2026-01-15T17:45:32.11473352+01:00","created_by":"Oliver Jakoubek"},{"issue_id":"kanboard-api-l72","depends_on_id":"kanboard-api-fue","type":"blocks","created_at":"2026-01-15T17:45:32.178153305+01:00","created_by":"Oliver Jakoubek"}]}
 {"id":"kanboard-api-l9b","title":"Implement Column API methods","description":"Implement direct API methods for column operations.\n\n## Methods to implement\n- GetColumns(ctx, projectID int) ([]Column, error) - getColumns\n- GetColumn(ctx, columnID int) (*Column, error) - getColumn\n\n## Files to create\n- columns.go\n\n## Acceptance criteria\n- Columns returned sorted by position\n- Returns ErrColumnNotFound when appropriate","status":"closed","priority":1,"issue_type":"feature","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:35:16.23369865+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T18:23:40.255170515+01:00","closed_at":"2026-01-15T18:23:40.255170515+01:00","close_reason":"Closed","dependencies":[{"issue_id":"kanboard-api-l9b","depends_on_id":"kanboard-api-uls","type":"blocks","created_at":"2026-01-15T17:42:53.022754817+01:00","created_by":"Oliver Jakoubek"},{"issue_id":"kanboard-api-l9b","depends_on_id":"kanboard-api-cyc","type":"blocks","created_at":"2026-01-15T17:42:53.094484504+01:00","created_by":"Oliver Jakoubek"}]}
-{"id":"kanboard-api-ob2","title":"Add MIT license","description":"Add MIT license file to the repository.\n\n## Files to create\n- LICENSE\n\n## Content\nStandard MIT license text with appropriate copyright holder.\n\n## Acceptance criteria\n- Valid MIT license\n- Proper copyright attribution","status":"in_progress","priority":3,"issue_type":"chore","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:36:53.955909551+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T19:25:14.995792945+01:00"}
+{"id":"kanboard-api-ob2","title":"Add MIT license","description":"Add MIT license file to the repository.\n\n## Files to create\n- LICENSE\n\n## Content\nStandard MIT license text with appropriate copyright holder.\n\n## Acceptance criteria\n- Valid MIT license\n- Proper copyright attribution","status":"closed","priority":3,"issue_type":"chore","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:36:53.955909551+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T19:25:32.124622745+01:00","closed_at":"2026-01-15T19:25:32.124622745+01:00","close_reason":"Added standard MIT license"}
 {"id":"kanboard-api-s7k","title":"Implement error types and handling","description":"Implement comprehensive error types for the Kanboard API client.\n\n## Sentinel Errors\n- ErrConnectionFailed, ErrTimeout (network)\n- ErrUnauthorized, ErrForbidden (auth)\n- ErrNotFound, ErrProjectNotFound, ErrTaskNotFound, ErrColumnNotFound, ErrCommentNotFound (resources)\n- ErrAlreadyInLastColumn, ErrAlreadyInFirstColumn, ErrTaskClosed, ErrTaskOpen (logic)\n- ErrEmptyTitle, ErrInvalidProjectID (validation)\n- ErrAPIError (API)\n\n## APIError struct\n- Code int\n- Message string\n- Error() string method\n\n## Helper functions\n- IsNotFound(err error) bool\n- IsUnauthorized(err error) bool\n- IsAPIError(err error) bool\n\n## Files to create\n- errors.go\n\n## Acceptance criteria\n- All errors properly support errors.Is/errors.As\n- Error wrapping with %w for context preservation","status":"closed","priority":0,"issue_type":"feature","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:34:54.484116412+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T18:13:03.195687148+01:00","closed_at":"2026-01-15T18:13:03.195687148+01:00","close_reason":"Closed"}
 {"id":"kanboard-api-t36","title":"Implement MoveToNextColumn with column logic","description":"Implement TaskScope.MoveToNextColumn with automatic column position logic.\n\n## Method to implement\n- TaskScope.MoveToNextColumn(ctx) error\n\n## Workflow\n1. Get task via getTask\n2. Get columns for task's project via getColumns\n3. Sort columns by position\n4. Find current column position\n5. If last column: return ErrAlreadyInLastColumn\n6. Move to next column via moveTaskPosition\n\n## Files to modify\n- task_scope.go\n\n## Acceptance criteria\n- Correctly identifies next column by position\n- Returns ErrAlreadyInLastColumn for last column\n- Handles column gaps (positions 1, 3, 5 etc.)","status":"closed","priority":1,"issue_type":"feature","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:36:29.900647957+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T18:41:56.137534164+01:00","closed_at":"2026-01-15T18:41:56.137534164+01:00","close_reason":"Closed","dependencies":[{"issue_id":"kanboard-api-t36","depends_on_id":"kanboard-api-una","type":"blocks","created_at":"2026-01-15T17:45:32.256714732+01:00","created_by":"Oliver Jakoubek"},{"issue_id":"kanboard-api-t36","depends_on_id":"kanboard-api-l9b","type":"blocks","created_at":"2026-01-15T17:45:32.319227723+01:00","created_by":"Oliver Jakoubek"}]}
 {"id":"kanboard-api-ukc","title":"Set up Mage build system","description":"Set up Mage build system for development automation.\n\n## Directory structure\n```\nmagefiles/\n├── go.mod\n├── go.sum\n└── magefile.go\n```\n\n## Targets to implement\n- Test() - Run all tests with race detection and coverage\n- Coverage() - Run tests and open HTML coverage report\n- Lint() - Run golangci-lint\n- Build() - Verify module compiles\n\n## Files to create\n- magefiles/go.mod\n- magefiles/magefile.go\n\n## Acceptance criteria\n- `mage test` runs tests with -race and -coverprofile\n- `mage lint` runs golangci-lint\n- `mage build` verifies compilation","status":"closed","priority":2,"issue_type":"chore","owner":"mail@oliverjakoubek.de","created_at":"2026-01-15T17:36:30.260235504+01:00","created_by":"Oliver Jakoubek","updated_at":"2026-01-15T19:20:02.610796083+01:00","closed_at":"2026-01-15T19:20:02.610796083+01:00","close_reason":"Mage build system implemented with test, coverage, lint, and build targets"}
diff --git a/types.go b/types.go
index f6d5a00..3e0160d 100644
--- a/types.go
+++ b/types.go
@@ -20,17 +20,26 @@ type StringBool bool
 
 // UnmarshalJSON implements json.Unmarshaler.
 func (b *StringBool) UnmarshalJSON(data []byte) error {
+	// Try as string first (most common from Kanboard)
 	var s string
-	if err := json.Unmarshal(data, &s); err != nil {
-		// Try as raw bool
-		var boolVal bool
-		if err := json.Unmarshal(data, &boolVal); err != nil {
-			return err
-		}
-		*b = StringBool(boolVal)
+	if err := json.Unmarshal(data, &s); err == nil {
+		*b = s == "1" || s == "true"
 		return nil
 	}
-	*b = s == "1" || s == "true"
+
+	// Try as number (some Kanboard versions return 0/1)
+	var n int
+	if err := json.Unmarshal(data, &n); err == nil {
+		*b = n != 0
+		return nil
+	}
+
+	// Try as raw bool
+	var boolVal bool
+	if err := json.Unmarshal(data, &boolVal); err != nil {
+		return err
+	}
+	*b = StringBool(boolVal)
 	return nil
 }
 
diff --git a/types_test.go b/types_test.go
index 2207b87..6b3e9e3 100644
--- a/types_test.go
+++ b/types_test.go
@@ -25,6 +25,9 @@ func TestStringBool_UnmarshalJSON(t *testing.T) {
 		{"string 0", `"0"`, false},
 		{"string true", `"true"`, true},
 		{"string false", `"false"`, false},
+		{"number 1", `1`, true},
+		{"number 0", `0`, false},
+		{"number non-zero", `42`, true},
 		{"bool true", `true`, true},
 		{"bool false", `false`, false},
 	}
@@ -133,6 +136,40 @@ func TestProject_UnmarshalJSON(t *testing.T) {
 	}
 }
 
+func TestProject_UnmarshalJSON_NumericBool(t *testing.T) {
+	// Some Kanboard versions return numeric booleans instead of strings
+	jsonData := `{
+		"id": 1,
+		"name": "Test Project",
+		"description": "A test project",
+		"is_active": 1,
+		"token": "abc123",
+		"last_modified": 1609459200,
+		"is_public": 0,
+		"is_private": 1,
+		"owner_id": 42,
+		"priority_default": 2
+	}`
+
+	var project Project
+	if err := json.Unmarshal([]byte(jsonData), &project); err != nil {
+		t.Fatalf("unmarshal error: %v", err)
+	}
+
+	if int(project.ID) != 1 {
+		t.Errorf("expected ID=1, got %d", project.ID)
+	}
+	if !bool(project.IsActive) {
+		t.Error("expected IsActive=true")
+	}
+	if bool(project.IsPublic) {
+		t.Error("expected IsPublic=false")
+	}
+	if !bool(project.IsPrivate) {
+		t.Error("expected IsPrivate=true")
+	}
+}
+
 func TestTask_UnmarshalJSON(t *testing.T) {
 	jsonData := `{
 		"id": "42",