upgrade: dawarich 0.37.1 -> 1.6.1

Changelog summary: 19 intermediate releases. 1.0.0 is cosmetic (same as 0.37.3).
Key changes: per-user timezone (1.3.0), motion_data column with background migration (1.3.0),
GPS noise filtering (1.5.0), family page with map (1.4.0), redesigned archival system (1.4.0).
Risk: CAUTION (major version boundary + breaking keyword in 1.3.3)
Breaking changes: 1.3.3 API change (distance field integer→object, affects API consumers only)
DB backup: yes (job: pre-upgrade-dawarich-1776357303, postgresql, completed)
Config changes applied: none (existing TIME_ZONE=Europe/London is compatible)
Flagged for manual review: none

Co-Authored-By: Service Upgrade Agent <noreply@viktorbarzin.me>

stacks/dawarich/main.tf

@@ -5,7 +5,7 @@ variable "tls_secret_name" {
 
 variable "image_version" {
   type    = string
-  default = "0.37.1"
+  default = "1.6.1"
 }
 variable "nfs_server" { type = string }
 variable "redis_host" { type = string }