Fix DIMM parsing, memory slot count, and service status bugs

- Fix BASH_REMATCH being wiped by second =~ in Bank Locator exclusion
  check, causing DIMM table to always show empty. Use glob == *pattern*
  instead of =~ for the exclusion so BASH_REMATCH is preserved.
- Remove incorrect bank_locators subtraction from total_slots count
  (grep pattern already excluded Bank Locator lines, so subtracting
  them again produced 0 total slots).
- Fix check_services showing stray "not-found" line after "inactive"
  status by replacing `|| echo "not-found"` with empty-string check.
- Add bc to README requirements list (script checks for it).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -32,6 +32,7 @@ The script requires the following tools to be installed:
 - smartctl
 - sensors
 - lspci
+- bc
 
 Optional tools for enhanced diagnostics:
 - ethtool (for detailed NIC information including link speed and firmware)

proxDoc.sh

@@ -331,7 +331,7 @@ get_memory_details() {
 
         # Parse fields - be very specific to avoid matching wrong lines
         # Locator (but not Bank Locator)
-        if [[ "$line" =~ ^[[:space:]]*Locator:[[:space:]]*(.+)$ ]] && [[ ! "$line" =~ Bank[[:space:]]*Locator ]]; then
+        if [[ "$line" =~ ^[[:space:]]*Locator:[[:space:]]*(.+)$ ]] && [[ ! "$line" == *Bank*Locator* ]]; then
             locator="${BASH_REMATCH[1]}"
             locator="${locator// /_}"
         # Size
@@ -380,12 +380,9 @@ get_memory_details() {
     echo -e "\n${GREEN}Memory Summary:${NC}"
 
     # Count slots and populated using simpler grep approach
+    # Pattern ^[[:space:]]*Locator: already excludes "Bank Locator:" lines
     local total_slots populated
-    total_slots=$(dmidecode -t memory 2>/dev/null | grep -c "^[[:space:]]*Locator:" | head -1)
-    # Subtract Bank Locator lines
-    local bank_locators
-    bank_locators=$(dmidecode -t memory 2>/dev/null | grep -c "Bank Locator:")
-    total_slots=$((total_slots - bank_locators))
+    total_slots=$(dmidecode -t memory 2>/dev/null | grep -c "^[[:space:]]*Locator:")
 
     populated=$(dmidecode -t memory 2>/dev/null | grep "^[[:space:]]*Size:" | grep -cv "No Module\|Not Installed")
     
@@ -670,7 +667,8 @@ check_services() {
     local services=("pvedaemon" "pveproxy" "pvecluster" "pve-cluster" "corosync")
     for service in "${services[@]}"; do
         local status
-        status=$(systemctl is-active "$service" 2>/dev/null || echo "not-found")
+        status=$(systemctl is-active "$service" 2>/dev/null)
+        [[ -z "$status" ]] && status="not-found"
         echo -e "${GREEN}$service:${NC} $status"
     done
 }