feat(traffic-flow): enhance traffic flow analytics and overlay configuration

- Updated the traffic flow analytics to include new state variables for named bytes, total bytes, and window seconds, improving data granularity.
- Modified the NetworkMapPage to display classified traffic data, including a new section for showing classified and total bytes.
- Enhanced the applyFlowOverlay function to support a new option for disabling GRE fast path, allowing for more flexible traffic flow configurations.
- Added a toggle in the FlowOverlaySheet component to enable or disable the GRE fast path setting, improving user control over traffic processing.
- Updated tests to validate the new functionalities and ensure accurate traffic flow analytics.

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

backend/src/services/traffic-flow-analytics.test.ts

@@ -388,8 +388,8 @@ try {
     assert.equal(def.excludeOverlayApplied, true)
     assert.equal(def.excludeMeshApplied, true)
     assert.ok(!def.conversationsList.some((r) => r.proto === 47))
-    assert.equal(def.conversationsList[0]?.service, "Google")
-    assert.equal(def.conversationsList[0]?.category, "Веб")
+    assert.equal(def.conversationsList[0]?.service, "YouTube")
+    assert.equal(def.conversationsList[0]?.category, "Видео / стриминг")
     assert.equal(def.conversationsList[0]?.clientName, "Alice")
     assert.equal(def.conversationsList[0]?.enName, "NSK-SERVHOST-RTK")
     assert.equal(def.conversationsList[0]?.plane, "payload")
@@ -445,8 +445,8 @@ try {
     const rev = await buildFlowAnalytics({ minutes: 5, serverId: 7 })
     const google = rev.conversationsList.find((r) => r.src === "173.194.151.65")
     const cf = rev.conversationsList.find((r) => r.src === "104.18.35.51")
-    assert.equal(google?.service, "Google")
-    assert.equal(google?.category, "Веб")
+    assert.equal(google?.service, "YouTube")
+    assert.equal(google?.category, "Видео / стриминг")
     assert.equal(cf?.service, "Cloudflare")
     assert.equal(cf?.category, "CDN")
   } finally {