feat(memory): opt-in Qdrant scalar int8 quantization (F4.4 Q1) (#4187)

Integrated into release/v3.8.29. Opt-in Qdrant scalar int8 quantization (F4.4 Q1); default 'none' keeps the create body byte-identical. Validated: vitest 9/9, file-size OK, lint clean.

src/shared/schemas/qdrant.ts

@@ -1,11 +1,14 @@
 import { z } from "zod";
 
+export const QdrantQuantizationSchema = z.enum(["none", "int8", "binary"]);
+
 export const QdrantSettingsSchema = z.object({
   enabled: z.boolean(),
   host: z.string().min(0), // string vazia OK quando enabled=false
   port: z.number().int().min(1).max(65535).default(6333),
   collection: z.string().min(1).default("omniroute_memory"),
   embeddingModel: z.string().default("openai/text-embedding-3-small"),
+  quantization: QdrantQuantizationSchema.default("none"),
   hasApiKey: z.boolean().default(false),
   apiKeyMasked: z.string().nullable().default(null),
 });
@@ -17,6 +20,7 @@ export const QdrantSettingsUpdateSchema = z
     port: z.number().int().min(1).max(65535).optional(),
     collection: z.string().min(1).optional(),
     embeddingModel: z.string().min(1).optional(),
+    quantization: QdrantQuantizationSchema.optional(),
     apiKey: z.string().optional(), // string vazia = remove
   })
   .strict();