[artem-broccoli]

Summary

Tasks and processes become shared foundations in core/, beside records, and import no business module. Features plug in instead:

• Record types register what a process needs from their records: who a record is about (readSubjects) and the dates a record-date trigger may start on (dateFields, findByDateBetween). Employees registers employee (its startDate); tasks registers task.
• Triggering events are registered by the module that publishes them (employees.added by employees; tasks.task_created and tasks.task_status_changed by tasks), collected once at startup; a key registered twice stops startup.
• People and working days are read through PeoplePort and WorkingCalendarsPort, which employees fills with adapters, together with the bank holiday rule. Ports live in a module's ports/ folder and their implementations in the implementing module's adapters/ folder, both enforced as lint layers.
• A process step's task is marked done with the ordinary tasks.markDone. Processes listens to the task's status event before the commit and completes the step and the run in the same transaction. Every transaction that locks a task and its run takes the task first; the daily check now locks a run's open tasks before the run. A run that can no longer go on (its record or person is gone) is left for the daily check, and a task done meanwhile stays done.
• Tasks no longer store which process step created them; Task.processSource is served by processes, and the Employee fields of Task by employees, so the GraphQL shape the web app reads stays the same.
• Tasks and runs are domain aggregates. Task owns who sees it, who marks it done or deletes it, and that done and cancelled are final. ProcessRun holds its steps and owns completing them, finishing, the removal check and cancelling; changes load it with lockRun and write it back with saveRun.
• Process definitions: a step keeps key and kind at its root and its kind's fields under it (task: { assignee, title, description, due }); startableByAdmin is gone, so an admin may start any process by hand with create on process_run. The run steps table is now process_run_step_progress: the steps live in the version's definition, the table holds a run's progress on each.
• Counting working days moves to utils (addWorkingDays); processes keeps what a day offset means and its limit.
• New rule RULE77: a module.md opens with JSON examples of its main flow; processes/module.md shows a run started by a change and by a date.

Behaviour changes:

• Done and cancelled tasks are final: Reopen, the Undo of Mark done and the reopen step command are gone.
• People no longer cancel tasks. The person who asked can delete an open task they asked for (tasks.delete), with a confirmation; only a process cancels the tasks it created, with a reason.
• Cancelling a run by hand is gone from the process service (it had no API or screen).

Stacked on #227.

Testing

• pnpm check, all API integration tests (1546) and end-to-end tests (304) pass; web unit tests pass.
• New tests: deleting a task (asker, assignee, unrelated caller, done, cancelled, process task), finishing steps through tasks.markDone (both steps, one step, concurrent completion, removed subject or assignee, manual tasks untouched), the daily check cancelling a run whose task record was deleted, definition parsing against registrations, and refusing a key registered twice.
• The migrations are edited in place; drizzle-kit generate reports no change for tasks and processes. The Docker image builds and pnpm dev starts on a fresh database.
• docs/qa/tasks.md is updated for Delete and the removed Reopen and Undo.
• After the review changes: processes, tasks and employees integration tests (544) and processes unit tests pass on a fresh database; typecheck and lint pass.
• Not done: screenshots of the Delete menu and dialog.

Release Notes:

• Improved: marking a process task done now works from Tasks like any other task.
• Changed: a task you asked for can be deleted while it is open; done tasks can no longer be reopened and tasks can no longer be cancelled by hand.