Add backlog, canceled, and duplicate task states

[SachaProbo]

Summary by cubic

Adds backlog, canceled, and duplicate task states so tasks can be tracked before work starts, when they're dismissed, or when they duplicate another task. The new states propagate through the database schema, GraphQL and MCP APIs, CLI, console UI, n8n integration, and shared UI package.

Tests +3 -0

Extends the task state enum E2E test to cover the three new states.

Coredata +33 -1

Adds a migration that appends BACKLOG, CANCELED, and DUPLICATE to the task_state enum, placed BACKLOG before TODO for ordering. Registers the new constants and includes them in TaskStates() and IsValid().

GraphQL API +3 -0

Adds the three new values to the TaskState GraphQL enum.

MCP +3 -0

Adds the three new values to the TaskState enum in the MCP spec.

prb (CLI) +1 -1

Updates the --state flag help text to list all six task states.

App: console +52 -12

Adds the new states to the task form dialog, task card columns, and quick-move action (backlog tasks can now move to To do). Updates en-US, fr-FR, and nl-NL locale files with the new state names and the "Move to To do" action label.

Package: ui +31 -1

Adds icons for the three new states to TaskStateIcon, exports the TaskState type, and adds Storybook stories for each new state.

Package: n8n-node +16 -4

Adds Backlog, Canceled, and Duplicate as selectable state values in the task update operation.

^{Written for commit e3dca98. Summary will update on new commits.}

[cubic-dev-ai]

All reported issues were addressed across 15 files

<sub>Reply with feedback, questions, or to request a fix.

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[cubic-dev-ai]

1 issue found across 15 files (changes from recent commits).

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="apps/console/src/components/tasks/TaskFormDialog.tsx">

<violation number="1" location="apps/console/src/components/tasks/TaskFormDialog.tsx:287">
P2: A newly created task can never use the new `BACKLOG` state because this selector is rendered only while editing, and the create mutation/API always defaults tasks to `TODO`. Expose the initial state in the create flow and pass it through `CreateTaskInput` if backlog is intended to represent work that has not started.</violation>
</file>

<sub>Tip: Review your code locally with the cubic CLI to iterate faster.

Fix all with cubic | Re-trigger cubic</sub>

[cubic-dev-ai]

P2: A newly created task can never use the new BACKLOG state because this selector is rendered only while editing, and the create mutation/API always defaults tasks to TODO. Expose the initial state in the create flow and pass it through CreateTaskInput if backlog is intended to represent work that has not started.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At apps/console/src/components/tasks/TaskFormDialog.tsx, line 287:

<comment>A newly created task can never use the new `BACKLOG` state because this selector is rendered only while editing, and the create mutation/API always defaults tasks to `TODO`. Expose the initial state in the create flow and pass it through `CreateTaskInput` if backlog is intended to represent work that has not started.</comment>

<file context>
@@ -284,6 +284,12 @@ export default function TaskFormDialog(props: Props) {
                       value={field.value}
                       onValueChange={field.onChange}
                     >
+                      <Option value="BACKLOG">
+                        <span className="flex items-center gap-2">
+                          <TaskStateIcon state="BACKLOG" />
</file context>