feat(bridge-benches): add per-destination chain dimension

benchmarks/bridge-fee.yml

@@ -11,6 +11,19 @@ status: live
 metric: Effective fee
 unit: pct
 
+# Per-destination breakdown. Same rationale as bridge-quote-latency:
+# bridges quote different cost structures per corridor (gas on the
+# destination dominates short hops, solver spread dominates long
+# auction routes), so an aggregate cross-corridor cost percent
+# obscures more than it reveals.
+dimensions:
+  chain:
+    - { value: all,       label: All destinations }
+    - { value: Solana,    label: To Solana }
+    - { value: Base,      label: To Base }
+    - { value: Arbitrum,  label: To Arbitrum }
+    - { value: HyperCore, label: To HyperCore }
+
 seo_intro: |
   This benchmark measures the cheapest cross-chain bridge live, refreshed
   every five minutes across the major USDC corridors. The headline figure

benchmarks/bridge-quote-latency.yml

@@ -11,6 +11,21 @@ status: live
 metric: Quote latency
 unit: ms
 
+# Per-destination breakdown. The bridge-monitor harness emits the chain
+# label set to route.ToChain (capitalized). Each bridge has wildly
+# different per-corridor latency profiles (Near Intents in particular is
+# bimodal: solver-cached corridors return in ~30ms while uncached ones
+# wait the full 3s solver auction window) so aggregating across all
+# destinations produces meaningless cross-corridor averages. The "All"
+# tab keeps the aggregate view; the per-chain tabs reveal the truth.
+dimensions:
+  chain:
+    - { value: all,       label: All destinations }
+    - { value: Solana,    label: To Solana }
+    - { value: Base,      label: To Base }
+    - { value: Arbitrum,  label: To Arbitrum }
+    - { value: HyperCore, label: To HyperCore }
+
 seo_intro: |
   This benchmark measures how fast each cross-chain bridge quote API
   returns a usable response, the response-time half of the bridge story