tracedecay-dev-sweep

TraceDecay Dev: Use for a full introspection-and-improvement pass over TraceDecay itself — triggers every dev skill in dependency order (diagnostics gate, evidence sweep across usage/logs/automation/hints/code-health, synthesis, fixes, verification). Use when asked to 'improve tracedecay from its own data', run a mass introspection, or when several dev skills would otherwise be invoked ad hoc.