fix: set temperature=false for firmware and venice Opus 4.7

Author: heimoshuiyu

providers/firmware/models/claude-opus-4-7.toml

@@ -4,7 +4,7 @@ release_date = "2026-04-16"
 last_updated = "2026-04-16"
 attachment = true
 reasoning = true
-temperature = true
+temperature = false
 tool_call = true
 knowledge = "2026-01-01"
 open_weights = false

providers/venice/models/claude-opus-4-7.toml

@@ -4,7 +4,7 @@ attachment = true
 reasoning = true
 tool_call = true
 structured_output = true
-temperature = true
+temperature = false
 release_date = "2026-04-16"
 last_updated = "2026-04-16"
 open_weights = false