fix(deepseek,model-catalog): vision for V4.1-Flash ids, scope synced catalog to gateways

- Declare deepseek-v4.1-flash and deepseek-flash as vision-capable in MODEL_CAPABILITIES
- Share installed catalogSource across route chunks via globalThis.__9rCatalogSource
- Scope catalog modality keys by provider:model to prevent cross-gateway collisions
- Upgrade catalog format to v2 with automatic rebuild of older schemas

open-sse/providers/capabilities.js

@@ -116,6 +116,16 @@ export const MODEL_CAPABILITIES = {
   // DeepSeek's first V4 model with image input; text limits match V4-Flash.
   "deepseek-v4-flash-vision-exp": { vision: true, reasoning: true, thinkingFormat: "deepseek", contextWindow: 1000000, maxOutput: 384000 },
 
+  // DeepSeek V4.1-Flash is natively multimodal — models.dev lists
+  // opencode-go/deepseek-v4.1-flash with modalities.input ["text","image"] — and upstream
+  // the retired v4-flash / vision-exp ids route to it, so the live V4.1 ids carry the
+  // same image capability as the exp id above. "deepseek-flash" is the GA id on the
+  // DeepSeek API; it previously fell through to the generic *deepseek* pattern, whose
+  // 128K/64K limits are kept here. The repeated fields are deliberate: an exact entry
+  // short-circuits the pattern table, so a vision-only delta would drop them.
+  "deepseek-v4.1-flash": { vision: true, reasoning: true, thinkingFormat: "deepseek", contextWindow: 1000000, maxOutput: 384000 },
+  "deepseek-flash":      { vision: true, reasoning: true, thinkingFormat: "deepseek", contextWindow: 128000, maxOutput: 64000 },
+
   // Qwen plain coder/text (no vision) — registry "vision-model" / "coder-model" aliases
   "vision-model":      { vision: true, reasoning: true, thinkingFormat: "qwen", contextWindow: 1000000 },
   "coder-model":       { reasoning: true, thinkingFormat: "qwen", contextWindow: 1000000 },
@@ -431,14 +441,27 @@ const MODALITY_KEYS = ["vision", "pdf", "audioInput", "videoInput"];
 
 // Catalog lookups, installed by the server at startup. Left as no-ops in the
 // browser bundle, where there is no file to read.
+//
+// The server bundles this module into every route chunk that needs it, and each
+// copy carries its own module state, so an install landing in the copy the
+// startup hook imported stays invisible to the copy resolving requests. The slot
+// lives on globalThis instead; the local binding is the fast path.
 let catalogSource = null;
 
 /**
  * Install the synced catalog reader (server only).
- * @param {{ getModalities: Function, getLimits: Function } | null} source
+ * @param {{ getModalities: (provider: string, model: string) => object|null,
+ *           getLimits: (provider: string, model: string) => object|null } | null} source
  */
 export function setCatalogSource(source) {
   catalogSource = source;
+  if (typeof globalThis !== "undefined") globalThis.__9rCatalogSource = source;
+}
+
+function getCatalogSource() {
+  if (catalogSource) return catalogSource;
+  if (typeof globalThis === "undefined") return null;
+  return (catalogSource = globalThis.__9rCatalogSource || null);
 }
 
 // Apply the synced catalog + name heuristic on top of a table-resolved result.
@@ -447,15 +470,16 @@ export function setCatalogSource(source) {
 function refine(base, provider, model) {
   const result = { ...DEFAULT_CAPABILITIES, ...base };
 
-  if (catalogSource) {
-    const modalities = catalogSource.getModalities(model);
+  const source = getCatalogSource();
+  if (source) {
+    const modalities = source.getModalities(provider, model);
     if (modalities) {
       for (const key of MODALITY_KEYS) {
         if (modalities[key] === true) result[key] = true;
       }
     }
 
-    const limits = catalogSource.getLimits(provider, model);
+    const limits = source.getLimits(provider, model);
     if (limits) {
       if (limits.contextWindow > 0) result.contextWindow = limits.contextWindow;
       if (limits.maxOutput > 0) result.maxOutput = limits.maxOutput;