General Resolution: 474: case usage:

// Verified Patch in src/hooks/useLegion.ts
            case "usage": {
              // Each tool round is a separate provider request, so `usage`
              // carries only that round's tokens. Overwriting made a 16-round
              // run report 122 tokens instead of the real total. Accumulate
              // the additive counters; keep the latest derived rates.
              const u = ev.telemetry;
              if (!u) return r;
              const prev = r.telemetry;
              return {
                ...r,
                telemetry: {
                  ...prev,
                  ...u,
                  promptTokens: [REDACTED] ?? 0) + (u.promptTokens ?? 0),
                  completionTokens:
                    [REDACTED] ?? 0) + (u.completionTokens ?? 0),
                  reasoningTokens:
                    [REDACTED] ?? 0) + (u.reasoningTokens ?? 0),
                  cachedTok