slug resolution: derive from dRPC chains.yaml, no in-code name heuristics

Regenerated by the expand_config.py redesign (see vibe-node commit). Slug
corrections, each verified present in chains.yaml:
  soneium-minato-sepolia x5: soneium (MAINNET!) -> soneium-minato
  avalanche-fuji x5:         avalanche (MAINNET!) -> avalanche-fuji
  thundercore-venus:         thundercore (MAINNET!) -> thundercore-testnet
  core-pigeon:               core-pigeon -> core-testnet
  zircuit-garfield:          zircuit-testnet -> zircuit-garfield-testnet
  sonic-testnet x2:          sonic-testnet -> sonic-testnet-v2
  ronin-saigon x3:           (none) -> ronin-saigon
  everclear-sepolia x2:      dropped (chain shut down 2026-06-05)
fuse-spark x3 (hand-written, fuse has chains: null in context.yml): x-upstreams
REMOVED - Sparknet is absent from chains.yaml; it declared the mainnet slug.

Verified: 310 testnet composes, 0 wrong-slug failures (was 22); 0 mainnet
composes carrying a testnet slug; 0 mainnet slug changes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

fuse/nethermind/fuse-spark-nethermind-archive-rocksdb-trace.yml

@@ -96,26 +96,8 @@ services:
 volumes:
   fuse-spark-nethermind-archive-rocksdb-trace:
 
-x-upstreams:
-  - id: $${ID}
-    labels:
-      provider: $${PROVIDER}
-    connection:
-      generic:
-        rpc:
-          url: $${RPC_URL}
-        ws:
-          frameSize: 20Mb
-          msgSize: 50Mb
-          url: $${WS_URL}
-    chain: fuse
-    method-groups:
-      enabled:
-        - debug
-        - filter
-        - trace
-    methods:
-      disabled:
-      enabled:
-        - name: txpool_content # TODO: should be disabled for rollup nodes
-...
+# fuse-spark (Sparknet, chainid 123) is ABSENT from dRPC chains.yaml - not a
+# servable dRPC chain. x-upstreams removed 2026-08-05 (it declared the MAINNET
+# slug "fuse", which would have advertised testnet data as mainnet). This file is
+# hand-written (fuse has chains: null in context.yml); onboarding it to generation
+# is the clean long-term fix. See chain-aliases.yaml fuse/spark: null.

fuse/nethermind/fuse-spark-nethermind-minimal-rocksdb-trace.yml

@@ -99,26 +99,8 @@ services:
 volumes:
   fuse-spark-nethermind-minimal-rocksdb-trace:
 
-x-upstreams:
-  - id: $${ID}
-    labels:
-      provider: $${PROVIDER}
-    connection:
-      generic:
-        rpc:
-          url: $${RPC_URL}
-        ws:
-          frameSize: 20Mb
-          msgSize: 50Mb
-          url: $${WS_URL}
-    chain: fuse
-    method-groups:
-      enabled:
-        - debug
-        - filter
-        - trace
-    methods:
-      disabled:
-      enabled:
-        - name: txpool_content # TODO: should be disabled for rollup nodes
-...
+# fuse-spark (Sparknet, chainid 123) is ABSENT from dRPC chains.yaml - not a
+# servable dRPC chain. x-upstreams removed 2026-08-05 (it declared the MAINNET
+# slug "fuse", which would have advertised testnet data as mainnet). This file is
+# hand-written (fuse has chains: null in context.yml); onboarding it to generation
+# is the clean long-term fix. See chain-aliases.yaml fuse/spark: null.

fuse/nethermind/fuse-spark-nethermind-pruned-rocksdb-trace.yml

@@ -94,26 +94,8 @@ services:
 volumes:
   fuse-spark-nethermind-pruned-rocksdb-trace:
 
-x-upstreams:
-  - id: $${ID}
-    labels:
-      provider: $${PROVIDER}
-    connection:
-      generic:
-        rpc:
-          url: $${RPC_URL}
-        ws:
-          frameSize: 20Mb
-          msgSize: 50Mb
-          url: $${WS_URL}
-    chain: fuse
-    method-groups:
-      enabled:
-        - debug
-        - filter
-        - trace
-    methods:
-      disabled:
-      enabled:
-        - name: txpool_content # TODO: should be disabled for rollup nodes
-...
+# fuse-spark (Sparknet, chainid 123) is ABSENT from dRPC chains.yaml - not a
+# servable dRPC chain. x-upstreams removed 2026-08-05 (it declared the MAINNET
+# slug "fuse", which would have advertised testnet data as mainnet). This file is
+# hand-written (fuse has chains: null in context.yml); onboarding it to generation
+# is the clean long-term fix. See chain-aliases.yaml fuse/spark: null.