Use GiB for RAM/disk values to match free -h / df -h

32 GiB of RAM was displaying as "33G" because values were divided by
1e9 (decimal GB). Binary GiB is what users compare against (mathoudebine#449).
Applied to local values and the remote-host page derivations.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Fumunchu

apps/common.py

@@ -200,11 +200,11 @@ def local_values():
         "nvme_temp": _nvme_temp(),
         "cpu_pct": psutil.cpu_percent(),
         "ram_pct": vm.percent,
-        "ram_used_g": vm.used / 1e9,
-        "ram_total_g": vm.total / 1e9,
+        "ram_used_g": vm.used / 2**30,  # GiB, matching free -h / df -h (#449)
+        "ram_total_g": vm.total / 2**30,
         "disk_pct": du.percent,
-        "disk_used_g": du.used / 1e9,
-        "disk_total_g": du.total / 1e9,
+        "disk_used_g": du.used / 2**30,
+        "disk_total_g": du.total / 2**30,
         "temp": host_temp(),
         "load1": os.getloadavg()[0],
         "uptime": fmt_uptime(),

pages.yaml

@@ -123,11 +123,11 @@ pages:
       net_up:   sum(rate(node_network_transmit_bytes_total{instance="pve2.local:9100",device=~"en.*|eth.*|nic.*"}[2m]))
     derived:
       ram_pct:      "100*(1-ram_a/ram_t)"
-      ram_used_g:   "(ram_t-ram_a)/1e9"
-      ram_total_g:  "ram_t/1e9"
+      ram_used_g:   "(ram_t-ram_a)/2**30"
+      ram_total_g:  "ram_t/2**30"
       disk_pct:     "100*(1-disk_a/disk_t)"
-      disk_used_g:  "(disk_t-disk_a)/1e9"
-      disk_total_g: "disk_t/1e9"
+      disk_used_g:  "(disk_t-disk_a)/2**30"
+      disk_total_g: "disk_t/2**30"
       uptime:       "str(int(up_s//86400))+'d '+str(int(up_s%86400//3600))+'h'"
       net_down_h:   "human_rate(net_down)"
       net_up_h:     "human_rate(net_up)"
@@ -155,11 +155,11 @@ pages:
       net_up:   sum(rate(node_network_transmit_bytes_total{instance="proxmox.local:9100",device=~"en.*|eth.*|nic.*"}[2m]))
     derived:
       ram_pct:      "100*(1-ram_a/ram_t)"
-      ram_used_g:   "(ram_t-ram_a)/1e9"
-      ram_total_g:  "ram_t/1e9"
+      ram_used_g:   "(ram_t-ram_a)/2**30"
+      ram_total_g:  "ram_t/2**30"
       disk_pct:     "100*(1-disk_a/disk_t)"
-      disk_used_g:  "(disk_t-disk_a)/1e9"
-      disk_total_g: "disk_t/1e9"
+      disk_used_g:  "(disk_t-disk_a)/2**30"
+      disk_total_g: "disk_t/2**30"
       uptime:       "str(int(up_s//86400))+'d '+str(int(up_s%86400//3600))+'h'"
       net_down_h:   "human_rate(net_down)"
       net_up_h:     "human_rate(net_up)"