release: v6.1.6

Bumps clientversion from 6.1.5 to 6.1.6 and updates all packaging
metadata (deb, rpm, docker, snap, flatpak, winget, scoop, appimage,
root Dockerfile) to match. Adds a v6.1.6 section to CHANGELOG.md
documenting the conditional Overview Total label and the 3-tier
amount-column color rule that landed in this release. Restores the
historic v6.1.5 entry in triangles.spec's %changelog after the bulk
sed bumped it incorrectly.

packaging/scoop/triangles.json

@@ -1,11 +1,11 @@
 {
-    "version": "6.1.5",
+    "version": "6.1.6",
     "description": "Cryptographic Triangles (TRI) cryptocurrency wallet with PoS staking and encrypted messaging",
     "homepage": "https://cryptographic-triangles.org",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/SamiAhmed7777/triangles_v5/releases/download/v6.1.5/Cryptographic-Triangles-6.1.5-win-x64.zip",
+            "url": "https://github.com/SamiAhmed7777/triangles_v5/releases/download/v6.1.6/Cryptographic-Triangles-6.1.6-win-x64.zip",
             "hash": "6f002a669a7e92aaf3d8dd7b1ae80f06a086c99a15ca05cf107665009ffc06b7"
         }
     },