refactor(packages): extract model-core package

packages/model-core/src/provider-cache.ts

@@ -0,0 +1,27 @@
+export interface ModelMetadata {
+  readonly id: string
+  readonly provider?: string
+  readonly context?: number
+  readonly output?: number
+  readonly name?: string
+  readonly variants?: Record<string, unknown>
+  readonly limit?: {
+    readonly context?: number
+    readonly input?: number
+    readonly output?: number
+  }
+  readonly modalities?: {
+    readonly input?: string[]
+    readonly output?: string[]
+  }
+  readonly capabilities?: Record<string, unknown>
+  readonly reasoning?: boolean
+  readonly temperature?: boolean
+  readonly tool_call?: boolean
+  readonly [key: string]: unknown
+}
+
+export interface ProviderCache {
+  readConnectedProvidersCache(): string[] | null
+  findProviderModelMetadata(providerID: string, modelID: string): ModelMetadata | undefined
+}