v1.12.2

v1.12.2

Effort is now mandatory on every task, and the web board has a new look.

Effort defaults to S with a warning

Every surface that creates a task fills an empty effort with S and says so,
so nobody mistakes an assumed value for a chosen one:

$ kb add "Ship it" -p web
kb: warning: #12 assumed status todo, priority low, effort S; pass --status, --prio, and --effort to choose
added #12 Ship it

• kb add warns on stderr about every default it relied on.
• The MCP add_task tool returns a warnings list with one entry per assumed
  default; its description tells agents to pass status, prio, and effort.
• The web API's POST /api/tasks stores S when effort is omitted.
• The web form offers only S, M, and L, shows which defaults are still in use
  as you edit, and confirms them in the toast on save. Quick add warns when
  priority or effort was not given.

Existing tasks with no effort are left alone until edited.

Web UI

• One neutral light theme. The dark theme and the theme toggle are gone.
• Flat ink primary button, soft-fill chips and buttons without borders, small
  radii on controls and labels.
• Priority shows as a coloured top edge on the card instead of a background
  wash. Checklist chips turn amber when part done and green when complete.
• Label hues skip the violet band.
• The shipped-today counter and the label filter row are removed from the
  header; labels still filter from card chips, the search syntax, and the
  command palette.