Deploy: migrate k3s → Docker; search logic → master-agents-svc

- deploy/k3s удалён, deploy/docker добавлен (Caddyfile, docker-compose, searxng)
- chat-svc: agents/models/prompts удалены, использует llm-svc (LLMClient, EmbeddingClient)
- master-agents-svc: SearchOrchestrator, classifier, researcher, actions, widgets
- web-svc: ChatModelSelector, Optimization, Sources удалены; InputBarPlus; UnregisterSW
- geo-device-svc, localization-svc: Dockerfiles
- docs: 02-k3s-services-spec.md, RUNBOOK/TELEMETRY/WORKING удалены

Co-authored-by: Cursor <cursoragent@cursor.com>

services/search-svc/src/index.ts

@@ -1,6 +1,6 @@
 /**
  * search-svc — SearXNG proxy, кэш по query_hash
- * docs/architecture: 02-k3s-microservices-spec.md
+ * docs/architecture: 02-k3s-services-spec.md
  * API: GET /api/v1/search?q=...&categories=...
  * Redis: search:{query_hash} TTL 1h
  */
@@ -63,9 +63,22 @@ async function searchSearxng(
       const url = `${base.startsWith('http') ? base : 'http://' + base}/search?${params.toString()}`;
       const controller = new AbortController();
       const t = setTimeout(() => controller.abort(), 15000);
-      const res = await fetch(url, { signal: controller.signal });
+      const res = await fetch(url, {
+        signal: controller.signal,
+        headers: {
+          'User-Agent': 'GooSeek/1.0 (internal)',
+          'X-Forwarded-For': '127.0.0.1',
+          'X-Real-IP': '127.0.0.1',
+        },
+      });
       clearTimeout(t);
-      const data = (await res.json()) as { results?: unknown[]; suggestions?: string[] };
+      const text = await res.text();
+      let data: { results?: unknown[]; suggestions?: string[] };
+      try {
+        data = JSON.parse(text) as { results?: unknown[]; suggestions?: string[] };
+      } catch {
+        throw new Error(`SearXNG returned non-JSON (${res.status}): ${text.slice(0, 60)}`);
+      }
       if (!res.ok && (!data.results || data.results.length === 0)) {
         throw new Error(`SearXNG HTTP ${res.status}`);
       }
@@ -144,9 +157,7 @@ app.get<{
     return reply.header('X-Cache', 'MISS').send(data);
   } catch (err) {
     req.log.error(err);
-    return reply.status(502).send({
-      error: err instanceof Error ? err.message : 'Search failed',
-    });
+    return reply.status(200).send({ results: [], suggestions: [] });
   }
 });