Fix: Klarere Feldbezeichnung für 'share'/Export-Pfad in 'drive add'/'edit'

Der generische Prompt-/Hilfetext "Local/Cloud share/export path" war
unabhängig vom gewählten Mount-Typ identisch, obwohl das Feld inhaltlich
je nach Backend etwas anderes ist (SMB-Freigabename, NFS-Export-Pfad,
WebDAV-URL-Pfad). share_field_label() wählt jetzt passend zum bereits
gewählten local_kind/cloud_kind einen eindeutigen Text mit Beispiel.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/cli/drive.rs

@@ -56,6 +56,8 @@ pub struct DriveArgs {
     local_ip: Option<Ipv4Addr>,
     #[arg(long, conflicts_with = "local_ip")]
     local_mac: Option<String>,
+    /// Meaning depends on '--local-kind': the SMB share name (e.g. 'media'), the NFS export
+    /// path (e.g. '/export/media'), or the WebDAV URL path (e.g. '/remote.php/dav/files/user').
     #[arg(long)]
     local_share: Option<String>,
     #[arg(long)]
@@ -72,6 +74,8 @@ pub struct DriveArgs {
     cloud_kind: Option<MountKind>,
     #[arg(long)]
     cloud_host: Option<String>,
+    /// Meaning depends on '--cloud-kind': the SMB share name (e.g. 'media'), the NFS export
+    /// path (e.g. '/export/media'), or the WebDAV URL path (e.g. '/remote.php/dav/files/user').
     #[arg(long)]
     cloud_share: Option<String>,
     #[arg(long)]
@@ -90,6 +94,18 @@ pub struct DriveArgs {
     non_interactive: bool,
 }
 
+/// Beschriftet das `share`-Feld abhängig vom bereits gewählten Mount-Typ statt des
+/// generischen "share/export path" - die drei Backends legen dort inhaltlich verschiedene
+/// Dinge ab (SMB-Freigabename, NFS-Export-Pfad, WebDAV-URL-Pfad), siehe
+/// `mount::target::format_source`.
+fn share_field_label(kind: MountKind, prefix: &str) -> String {
+    match kind {
+        MountKind::WebDav => format!("{prefix} WebDAV path (e.g. '/remote.php/dav/files/user')"),
+        MountKind::Smb => format!("{prefix} share name (e.g. 'media')"),
+        MountKind::Nfs => format!("{prefix} export path (e.g. '/export/media')"),
+    }
+}
+
 pub async fn run(action: DriveAction) -> anyhow::Result<()> {
     match action {
         DriveAction::Add(args) => add(args).await,
@@ -166,8 +182,14 @@ async fn add(args: DriveArgs) -> anyhow::Result<()> {
 
     let local_kind = resolve_kind(args.local_kind, None, "Local mount type", ni)?;
     let local_address = resolve_local_address(args.local_ip, args.local_mac, None, ni)?;
-    let local_share = resolve_field(args.local_share, None, "Local share/export path", ni, true)?
+    let local_share = resolve_field(
-        .expect("required");
+        args.local_share,
+        None,
+        &share_field_label(local_kind, "Local"),
+        ni,
+        true,
+    )?
+    .expect("required");
     let local_password_flag = read_password_flag(args.local_password, args.local_password_stdin)?;
     let (local_username, local_password) = resolve_credentials(
         local_kind,
@@ -181,8 +203,14 @@ async fn add(args: DriveArgs) -> anyhow::Result<()> {
     let cloud_kind = resolve_kind(args.cloud_kind, None, "Cloud mount type", ni)?;
     let cloud_host = resolve_field(args.cloud_host, None, "Cloud server address/URL", ni, true)?
         .expect("required");
-    let cloud_share = resolve_field(args.cloud_share, None, "Cloud share/export path", ni, true)?
+    let cloud_share = resolve_field(
-        .expect("required");
+        args.cloud_share,
+        None,
+        &share_field_label(cloud_kind, "Cloud"),
+        ni,
+        true,
+    )?
+    .expect("required");
     let cloud_password_flag = read_password_flag(args.cloud_password, args.cloud_password_stdin)?;
     let (cloud_username, cloud_password) = resolve_credentials(
         cloud_kind,
@@ -272,7 +300,7 @@ async fn edit(id: &str, args: DriveArgs) -> anyhow::Result<()> {
     let local_share = resolve_field(
         args.local_share,
         Some(&existing.local.share),
-        "Local share/export path",
+        &share_field_label(local_kind, "Local"),
         ni,
         true,
     )?
@@ -307,7 +335,7 @@ async fn edit(id: &str, args: DriveArgs) -> anyhow::Result<()> {
     let cloud_share = resolve_field(
         args.cloud_share,
         Some(&existing.cloud.share),
-        "Cloud share/export path",
+        &share_field_label(cloud_kind, "Cloud"),
         ni,
         true,
     )?