Filter terminal tasks from Pipeline Kanban board#

Problem#

Tasks with terminal statuses (complete, failed, stopped) were showing up in Kanban phase columns, cluttering the board with finished work instead of only in-progress tasks.

Task / Link#

Closes #53

Changes#

• Define TERMINAL_STATUSES set (complete, completed, failed, stopped) in app/pipeline/page.tsx
• Skip terminal tasks during the Kanban phase grouping loop
• List view (details fallback) still renders all tasks unfiltered

Notes#

Plan assumed error/cancelled as terminal values; the actual codebase uses failed/stopped. Verified against the status dropdown and StatusBadge styles in the same file.

Testing#

• npm run lint — zero warnings/errors
• npm run build — compiled successfully