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/cli/doctor/checks/model-resolution-cache.test.ts

@@ -34,7 +34,7 @@ describe("loadAvailableModelsFromCache", () => {
       join(tempDir, "cache", "opencode", "models.json"),
       JSON.stringify({
         openai: { models: { "gpt-5.4": {} } },
-        anthropic: { models: { "claude-opus-4-6": {}, "claude-sonnet-4-6": {} } },
+        anthropic: { models: { "claude-opus-4-7": {}, "claude-sonnet-4-6": {} } },
       })
     )
 

src/cli/doctor/checks/model-resolution.test.ts

@@ -14,7 +14,7 @@ describe("model-resolution check", () => {
       // then: Should have agent entries
       const sisyphus = info.agents.find((a) => a.name === "sisyphus")
       expect(sisyphus).toBeDefined()
-      expect(sisyphus!.requirement.fallbackChain[0]?.model).toBe("claude-opus-4-6")
+      expect(sisyphus!.requirement.fallbackChain[0]?.model).toBe("claude-opus-4-7")
       expect(sisyphus!.requirement.fallbackChain[0]?.providers).toContain("anthropic")
     })
 
@@ -42,7 +42,7 @@ describe("model-resolution check", () => {
       // given: User has override for oracle agent
       const mockConfig = {
         agents: {
-          oracle: { model: "anthropic/claude-opus-4-6" },
+          oracle: { model: "anthropic/claude-opus-4-7" },
         },
       }
 
@@ -51,8 +51,8 @@ describe("model-resolution check", () => {
       // then: Oracle should show the override
       const oracle = info.agents.find((a) => a.name === "oracle")
       expect(oracle).toBeDefined()
-      expect(oracle!.userOverride).toBe("anthropic/claude-opus-4-6")
-      expect(oracle!.effectiveResolution).toBe("User override: anthropic/claude-opus-4-6")
+      expect(oracle!.userOverride).toBe("anthropic/claude-opus-4-7")
+      expect(oracle!.effectiveResolution).toBe("User override: anthropic/claude-opus-4-7")
     })
 
     it("shows user override for category when configured", async () => {
@@ -169,13 +169,13 @@ describe("model-resolution check", () => {
 
       const info = getModelResolutionInfoWithOverrides({
         agents: {
-          oracle: { model: "anthropic/claude-opus-4-6-thinking" },
+          oracle: { model: "anthropic/claude-opus-4-7-thinking" },
         },
       })
 
       const oracle = info.agents.find((agent) => agent.name === "oracle")
       expect(oracle).toBeDefined()
-      expect(oracle!.effectiveModel).toBe("anthropic/claude-opus-4-6-thinking")
+      expect(oracle!.effectiveModel).toBe("anthropic/claude-opus-4-7-thinking")
       expect(oracle!.capabilityDiagnostics).toMatchObject({
         resolutionMode: "alias-backed",
         canonicalization: {