chore: init main branch

src/lib/models-dev.ts

@@ -0,0 +1,57 @@
+import snapshot from "./models-dev.json";
+
+/**
+ * Compact per-model reference data from models.dev
+ * (see scripts/fetch-models-dev.mjs).
+ */
+export interface ModelRef {
+  name?: string;
+  context?: number;
+  reasoning?: boolean;
+  tool_call?: boolean;
+  structured_output?: boolean;
+  image?: boolean;
+  video?: boolean;
+}
+
+const data: Record<string, ModelRef> = snapshot;
+
+// models.dev keys are "<lab>/<model>" and may be mixed-case (e.g.
+// "minimax/MiniMax-M3"), while provider APIs return bare model ids
+// (e.g. "kimi-k2.5"). Index lowercase for tolerant matching.
+const byLowerKey: Record<string, ModelRef> = {};
+for (const [key, value] of Object.entries(data)) {
+  byLowerKey[key.toLowerCase()] = value;
+}
+
+/**
+ * Look up reference data for a provider model id.
+ * Matches exact key first, then any "<lab>/<id>" suffix.
+ * Returns undefined when nothing matches — callers fall back to
+ * getDefaultMaxContextSize / manual capabilities.
+ */
+export function getModelRef(modelId: string): ModelRef | undefined {
+  const id = modelId.trim().toLowerCase();
+  if (!id) return undefined;
+  const exact = byLowerKey[id];
+  if (exact) return exact;
+  const suffix = `/${id}`;
+  for (const [key, value] of Object.entries(byLowerKey)) {
+    if (key.endsWith(suffix)) return value;
+  }
+  return undefined;
+}
+
+/**
+ * Map reference data to Kimi Code capability flags.
+ * Multimodal (image_in/video_in) comes from models.dev input modalities;
+ * always_thinking cannot be derived and stays manual.
+ */
+export function capabilitiesFromRef(ref: ModelRef): string[] {
+  const caps: string[] = [];
+  if (ref.reasoning) caps.push("thinking");
+  if (ref.tool_call) caps.push("tool_use");
+  if (ref.image) caps.push("image_in");
+  if (ref.video) caps.push("video_in");
+  return caps;
+}