feat(statistics): добавить раздел статистики трафика

Куб IPFIX час+день с AND-слайсами и экраном отчётности /statistics, живой /traffic не меняем.

Co-authored-by: Cursor <[email protected]>

backend/src/db/partitions.ts

@@ -13,6 +13,8 @@ export const PARTITION_SPECS: PartitionSpec[] = [
   { parent: "flow_minute_stats", kind: "day", keepDays: 4 },
   { parent: "flow_minute_dims", kind: "day", keepDays: 4 },
   { parent: "flow_daily_dims", kind: "month", keepDays: 420 },
+  { parent: "flow_hour_facts", kind: "day", keepDays: 3 },
+  { parent: "flow_daily_facts", kind: "month", keepDays: 420 },
   { parent: "traffic_samples", kind: "week", keepDays: 21 },
   { parent: "servers_rest_ping_samples", kind: "week", keepDays: 35 },
   { parent: "uptime_probe_samples", kind: "week", keepDays: 21 },

backend/src/db/schema.ts

@@ -208,6 +208,36 @@ export const flowDailyDims = pgTable("flow_daily_dims", {
   index("idx_flow_daily_dims_day").on(t.day, t.dim),
 ])
 
+/** Hour-grain traffic cube for statistics (≤48h). No secondary indexes. */
+export const flowHourFacts = pgTable("flow_hour_facts", {
+  serverId: bigint("server_id", { mode: "number" }).notNull()
+              .references(() => servers.id, { onDelete: "cascade" }),
+  bucketAt: ts("bucket_at").notNull(),
+  iface:    text("iface").notNull(),
+  country:  text("country").notNull(),
+  service:  text("service").notNull(),
+  asn:      integer("asn").notNull(),
+  bytes:    bigint("bytes", { mode: "number" }).notNull().default(0),
+  packets:  bigint("packets", { mode: "number" }).notNull().default(0),
+}, (t) => [
+  primaryKey({ columns: [t.serverId, t.bucketAt, t.iface, t.country, t.service, t.asn] }),
+])
+
+/** Daily-grain traffic cube for statistics (long window). No secondary indexes. */
+export const flowDailyFacts = pgTable("flow_daily_facts", {
+  serverId: bigint("server_id", { mode: "number" }).notNull()
+              .references(() => servers.id, { onDelete: "cascade" }),
+  day:      date("day", { mode: "string" }).notNull(),
+  iface:    text("iface").notNull(),
+  country:  text("country").notNull(),
+  service:  text("service").notNull(),
+  asn:      integer("asn").notNull(),
+  bytes:    bigint("bytes", { mode: "number" }).notNull().default(0),
+  packets:  bigint("packets", { mode: "number" }).notNull().default(0),
+}, (t) => [
+  primaryKey({ columns: [t.serverId, t.day, t.iface, t.country, t.service, t.asn] }),
+])
+
 export const flowBuckets = pgTable("flow_buckets", {
   serverId:  intPkRef().references(() => servers.id, { onDelete: "cascade" }),
   bucketAt:  ts("bucket_at").notNull(),