Show load-test mixes as normalized shares

Co-authored-by: Toshi <toshi-noreply@coinbase.com>

Author: 0x00101010

app/scaling/runs/fixtures/synthetic.json

@@ -44,7 +44,7 @@
         "config": {
           "funding_amount": "1000000000000000000", "sender_count": 10, "sender_offset": 0, "in_flight_per_sender": 4,
           "duration": "30s", "target_gps": 15000000, "seed": 1, "chain_id": null,
-          "transactions": [{ "type": "transfer", "weight": 70 }, { "type": "swap", "weight": 30 }],
+          "transactions": [{ "type": "transfer", "weight": 3 }, { "type": "swap", "weight": 1 }],
           "looper_contract": null, "swap_token_amount": "0"
         }
       }

app/scaling/runs/lib/unified.test.ts

@@ -37,7 +37,7 @@ it('maps a load test as a burst with its mix, observed gas/s and p99 latencies',
     timestamp: Date.UTC(2026, 0, 8, 0, 0, 1),
     duration: 30,
     profile: 'burst',
-    workload: '70% transfer · 30% swap · target 15 Mgas/s',
+    workload: 'transfer (75%) · swap (25%) · target 15 Mgas/s',
     gasPerSecond: 12.5e6,
     latency: [{ label: 'block p99', seconds: 3 }, { label: 'flashblocks p99', seconds: 0.8 }],
     status: 'success',

app/scaling/runs/lib/unified.ts

@@ -1,4 +1,4 @@
-import { durationToMs, parseLoadTestTimestamp } from './formatters';
+import { durationToMs, formatTransactions, parseLoadTestTimestamp } from './formatters';
 import type { BenchmarkRunWithStatus, LoadTestEntry, LoadTestResult, RunStatus, RustDuration } from './types';
 
 export type LoadRun = LoadTestEntry & { result?: LoadTestResult };
@@ -51,7 +51,6 @@ function fromBench(run: BenchmarkRunWithStatus): UnifiedRun {
 
 function fromLoad({ network, timestamp, result }: LoadRun): UnifiedRun {
   const config = result?.config;
-  const mix = config?.transactions.map((t) => `${t.weight}% ${t.type}`).join(' · ');
   const target = config ? `target ${config.target_gps / 1e6} Mgas/s` : undefined;
   return withQualifies({
     kind: 'load',
@@ -62,7 +61,7 @@ function fromLoad({ network, timestamp, result }: LoadRun): UnifiedRun {
     commit: null,
     machine: null,
     duration: result?.throughput ? secs(result.throughput.duration) : null,
-    workload: [mix, target].filter(Boolean).join(' · ') || '—',
+    workload: [config && formatTransactions(config), target].filter(Boolean).join(' · ') || '—',
     gasPerSecond: result?.throughput?.gps ?? null,
     latency: result?.block_latency ? [{ label: 'block p99', seconds: secs(result.block_latency.p99) }, { label: 'flashblocks p99', seconds: secs(result.flashblocks_latency.p99) }] : [],
     status: result ? (result.error ? 'fatal' : 'success') : null,