feat(TASK-001): add rigor/surfaces declaration layer to planning skills
design-session: Quality bar round in Step 2 (rigor/surfaces proposal,
per-surface confirm/drop, other:<label> lane, autonomous fallback),
rigor+surfaces frontmatter and Quality bar section in the Step 3 PLAN
template, poc-dodge anti-pattern.
task-tracking: optional per-task surfaces key (inherits the plan's list);
rigor stays run-level only.
plan-gatekeeping: manifest category 11 (Quality bar) with
FRICTION/BLOCKING severity guidance.
Dark-Alex-17
e4c5f42a25