feat: add IaC layer with shared var/t1 and var/t3 data paths

Ansible provisions the k3d cluster and Flux controllers; Terraform
modules deploy the simulated fleet and ground warehouse. Compose and
k3d share var/t1 (live lake) and var/t3 (warehouse). The prototype
gains a live mode fed by the explorer read-only SQL API.

prototype/src/sim.ts

@@ -9,6 +9,7 @@ export interface Vec {
 
 export interface Drone {
   id: number;
+  name?: string; // live mode: real drone_id from the data plane
   pos: Vec;
   vel: Vec;
   heading: number; // radians
@@ -58,6 +59,8 @@ const CRUISE = 28;
 const SEPARATION = 55;
 const POSE_BYTES = 46;
 const POSE_HZ = 5;
+// Steady per-link broadcast throughput (both directions), bytes/s
+export const POSE_RATE_BYTES = POSE_BYTES * POSE_HZ;
 const CHANNELS = [1, 6, 11, 36, 40, 44, 149, 157];
 
 let seedState = 1234;