docs: update cmdlet help via platyPS merge, fix generate-help.ps1

- generate-help.ps1: rewritten to use Update-MarkdownHelp (merge) by
  default, preserving hand-written descriptions and examples. Only
  New-MarkdownHelp on genuinely new cmdlets. -Force flag for full regen.
- docs/cmdlets: parameter metadata updated via platyPS merge, CRLF
  normalized to LF
- Removed stale Send-PveIso.md (cmdlet renamed to Send-PveFile)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/cmdlets/Invoke-PveVmGuestFsTrim.md

@@ -31,6 +31,21 @@ Triggers fstrim on VM 100.
 
 ## PARAMETERS
 
+### -Confirm
+Prompts you for confirmation before running the cmdlet.
+
+```yaml
+Type: SwitchParameter
+Parameter Sets: (All)
+Aliases: cf
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### -Node
 The PVE node name.
 
@@ -46,6 +61,21 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
+### -Session
+{{ Fill Session Description }}
+
+```yaml
+Type: PveSession
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### -VmId
 The VM identifier.
 
@@ -61,21 +91,6 @@ Accept pipeline input: True (ByPropertyName)
 Accept wildcard characters: False
 ```
 
-### -Session
-{{ Fill Session Description }}
-
-```yaml
-Type: PveSession
-Parameter Sets: (All)
-Aliases:
-
-Required: False
-Position: Named
-Default value: None
-Accept pipeline input: False
-Accept wildcard characters: False
-```
-
 ### -WhatIf
 Shows what would happen if the cmdlet runs. The cmdlet is not run.
 
@@ -91,21 +106,6 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
-### -Confirm
-Prompts you for confirmation before running the cmdlet.
-
-```yaml
-Type: SwitchParameter
-Parameter Sets: (All)
-Aliases: cf
-
-Required: False
-Position: Named
-Default value: None
-Accept pipeline input: False
-Accept wildcard characters: False
-```
-
 ### -ProgressAction
 {{ Fill ProgressAction Description }}