refactor(models): bump claude-opus-4-6 to claude-opus-4-7 across fallback chains, categories, and hooks

Updates the canonical Anthropic Opus model in every fallback chain
(sisyphus, oracle, prometheus, metis, momus, visual-engineering,
ultrabrain, deep, artistry, unspecified-high), the unspecified-high
category default, the think-mode HIGH_VARIANT_MAP, the Claude Code
alias map, the claude-thinking legacy alias, the context-limit GA
regex, and event.ts fallback strings.

Widens supportsCachedAnthropicLimit to accept both claude-*-4-6 and
claude-*-4-7 so the 1M context cache still applies across the bump.

Regenerates the bundled model-capabilities snapshot from models.dev
and the model-fallback snapshot to match the new source output.

src/plugin/event.test.ts

@@ -826,7 +826,7 @@ describe("createEventHandler - retry dedupe lifecycle", () => {
 		const retryStatus = {
 			type: "retry",
 			attempt: 1,
-			message: "All credentials for model claude-opus-4-6-thinking are cooling down [retrying in 7m 56s attempt #1]",
+			message: "All credentials for model claude-opus-4-7-thinking are cooling down [retrying in 7m 56s attempt #1]",
 			next: 476,
 		} as const
 
@@ -838,7 +838,7 @@ describe("createEventHandler - retry dedupe lifecycle", () => {
 						id: "msg_user_retry_rearm",
 						sessionID,
 						role: "user",
-						modelID: "claude-opus-4-6-thinking",
+						modelID: "claude-opus-4-7-thinking",
 						providerID: "anthropic",
 						agent: "Sisyphus - Ultraworker",
 					},
@@ -862,7 +862,7 @@ describe("createEventHandler - retry dedupe lifecycle", () => {
 			{
 				sessionID,
 				agent: "sisyphus",
-				model: { providerID: "anthropic", modelID: "claude-opus-4-6-thinking" },
+				model: { providerID: "anthropic", modelID: "claude-opus-4-7-thinking" },
 			},
 			firstOutput,
 		)