feat(v031): VisionDetect — isVisionCapable + refreshVisionCache (fetch 주입)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/main/services/VisionDetect.ts

@@ -0,0 +1,44 @@
+import type { SettingsService } from './SettingsService.js';
+
+const VISION_FAMILIES = new Set(['gemma3', 'llava', 'llama3.2-vision', 'minicpm-v', 'pixtral']);
+const VISION_NAME_HINTS = ['vision', 'vl', 'multimodal', 'gemma3'];
+
+export interface OllamaModel {
+  name: string;
+  details?: { family?: string; families?: string[] };
+}
+
+export function isVisionCapable(model: OllamaModel): boolean {
+  if (model.details?.family && VISION_FAMILIES.has(model.details.family)) return true;
+  if (model.details?.families?.some((f) => VISION_FAMILIES.has(f))) return true;
+  const lower = model.name.toLowerCase();
+  return VISION_NAME_HINTS.some((h) => lower.includes(h));
+}
+
+export interface RefreshDeps {
+  settings: SettingsService;
+  endpoint: string;
+  now?: () => Date;
+  fetchImpl?: typeof fetch;
+}
+
+export async function refreshVisionCache(
+  deps: RefreshDeps
+): Promise<{ ok: true; models: string[] } | { ok: false; reason: string }> {
+  if (!(await deps.settings.isAiEnabled())) {
+    return { ok: false, reason: 'ai_disabled' };
+  }
+  const fetchFn = deps.fetchImpl ?? fetch;
+  let body: { models?: OllamaModel[] };
+  try {
+    const r = await fetchFn(`${deps.endpoint}/api/tags`);
+    if (!r.ok) return { ok: false, reason: `tags http ${r.status}` };
+    body = (await r.json()) as { models?: OllamaModel[] };
+  } catch (e) {
+    return { ok: false, reason: `unreachable: ${(e as Error).message}` };
+  }
+  const capable = (body.models ?? []).filter(isVisionCapable).map((m) => m.name);
+  const now = deps.now ? deps.now() : new Date();
+  await deps.settings.setVisionCapableCache(capable, now);
+  return { ok: true, models: capable };
+}