fix(compute): rename anthropic-claude provider file to match _index basename (#48)

provider-loader loads <basename>.json from _index order; the file must be
anthropic-claude.json (was anthropic-claude-plan.json) or it is not loaded.

compute/providers/anthropic-claude.json

@@ -0,0 +1,105 @@
+{
+  "id": "provider-anthropic-claude-plan-001",
+  "provider": "anthropic-claude",
+  "brandGroup": "anthropic",
+  "label": "Claude 订阅 (Claude Code)",
+  "baseUrl": "https://api.anthropic.com",
+  "apiFormat": "anthropic-messages",
+  "apiKeyRef": "anthropic-claude-oauth-token",
+  "apiKeyVerified": false,
+  "enabled": false,
+  "status": "unconfigured",
+  "priceCurrency": "USD",
+  "accessMode": "coding-plan",
+  "credentialSource": "claude-oauth",
+  "codingPlan": {
+    "quotas": {},
+    "usageTracking": {
+      "method": "none",
+      "consoleUrl": "https://claude.ai/settings/usage"
+    }
+  },
+  "services": [
+    "chat",
+    "reasoning"
+  ],
+  "models": [
+    {
+      "modelName": "claude-fable-5",
+      "displayName": "Claude Fable 5 (订阅)",
+      "serviceType": [
+        "chat"
+      ],
+      "description": "Claude 订阅额度计费，Anthropic 最高能力公开模型，面向长程智能体与高难推理，1M 上下文",
+      "contextWindow": 1000000,
+      "maxOutputTokens": 128000,
+      "capabilities": [
+        "chat",
+        "reasoning",
+        "code",
+        "vision",
+        "tool_use",
+        "agent",
+        "long_context"
+      ],
+      "source": "preset"
+    },
+    {
+      "modelName": "claude-opus-4-8",
+      "displayName": "Claude Opus 4.8 (订阅)",
+      "serviceType": [
+        "chat"
+      ],
+      "description": "Claude 订阅额度计费，Opus 级复杂智能体编码与企业任务模型，1M 上下文",
+      "contextWindow": 1000000,
+      "maxOutputTokens": 128000,
+      "capabilities": [
+        "chat",
+        "reasoning",
+        "code",
+        "vision",
+        "tool_use",
+        "agent",
+        "long_context"
+      ],
+      "source": "preset"
+    },
+    {
+      "modelName": "claude-sonnet-5",
+      "displayName": "Claude Sonnet 5 (订阅)",
+      "serviceType": [
+        "chat"
+      ],
+      "description": "Claude 订阅额度计费，速度与智能平衡模型，支持长上下文智能体任务",
+      "contextWindow": 1000000,
+      "maxOutputTokens": 128000,
+      "capabilities": [
+        "chat",
+        "reasoning",
+        "code",
+        "vision",
+        "tool_use",
+        "agent",
+        "long_context"
+      ],
+      "source": "preset"
+    },
+    {
+      "modelName": "claude-haiku-4-5",
+      "displayName": "Claude Haiku 4.5 (订阅)",
+      "serviceType": [
+        "chat"
+      ],
+      "description": "Claude 订阅额度计费，最快模型，具备接近前沿模型的智能水平，200K 上下文",
+      "contextWindow": 200000,
+      "maxOutputTokens": 64000,
+      "capabilities": [
+        "chat",
+        "code",
+        "vision",
+        "tool_use"
+      ],
+      "source": "preset"
+    }
+  ]
+}