feat(registratura): all 4 NAS drives (A/O/P/T) + hostnameIP fallback

- nas-paths.ts: A:\=Arhiva, O:\=Organizare, P:\=Proiecte, T:\=Transfer
- toUncPathByIp() / toFileUrlByIp() helpers for DNS failure fallback
- shareLabelFor() returns human-readable share name for badges
- UI: 'IP' fallback link on hover, badge shows share label
- Validation hints updated to show all 4 drive letters
- Docs updated: CLAUDE.md, ROADMAP.md, SESSION-LOG.md

src/modules/registratura/components/registry-entry-form.tsx

@@ -34,8 +34,10 @@ import {
   isNetworkPath,
   toUncPath,
   toFileUrl,
+  toFileUrlByIp,
   pathFileName,
   shortDisplayPath,
+  shareLabelFor,
 } from "@/config/nas-paths";
 import { Input } from "@/shared/components/ui/input";
 import { Label } from "@/shared/components/ui/label";
@@ -1223,7 +1225,7 @@ export function RegistryEntryForm({
           <div className="mt-2 rounded-md border border-blue-200 bg-blue-50/50 dark:border-blue-800 dark:bg-blue-950/30 p-3 space-y-2">
             <Label className="text-xs flex items-center gap-1">
               <HardDrive className="h-3 w-3" />
-              Cale fișier pe NAS (\\newamun sau P:\\...)
+              Cale fișier pe NAS (A:\ O:\ P:\ T:\ sau \\newamun\\...)
             </Label>
             <div className="flex gap-2">
               <Input
@@ -1254,7 +1256,8 @@ export function RegistryEntryForm({
             )}
             {networkPathInput.trim() && !isNetworkPath(networkPathInput) && (
               <p className="text-[10px] text-amber-600 dark:text-amber-400">
-                Calea nu pare a fi pe NAS. Introdu o cale de tip P:\\... sau \\newamun\\...
+                Calea nu pare a fi pe NAS. Introdu o cale de tip A:\ O:\ P:\ T:\
+                sau \\newamun\\...
               </p>
             )}
           </div>
@@ -1275,7 +1278,6 @@ export function RegistryEntryForm({
                     className="flex-1 min-w-0 flex items-center gap-1 text-blue-700 dark:text-blue-300 hover:underline cursor-pointer"
                     title={`Deschide în Explorer: ${att.networkPath}`}
                     onClick={(e) => {
-                      // file:/// links might be blocked by browser; copy path as fallback
                       e.preventDefault();
                       window.open(toFileUrl(att.networkPath!), "_blank");
                     }}
@@ -1285,11 +1287,23 @@ export function RegistryEntryForm({
                       {shortDisplayPath(att.networkPath)}
                     </span>
                   </a>
+                  {/* IP fallback link — visible on hover when DNS fails */}
+                  <a
+                    href={toFileUrlByIp(att.networkPath)}
+                    className="opacity-0 group-hover:opacity-100 transition-opacity text-[10px] text-blue-400 hover:text-blue-600 dark:hover:text-blue-200 shrink-0"
+                    title={`Fallback IP: ${toFileUrlByIp(att.networkPath!)}`}
+                    onClick={(e) => {
+                      e.preventDefault();
+                      window.open(toFileUrlByIp(att.networkPath!), "_blank");
+                    }}
+                  >
+                    IP
+                  </a>
                   <Badge
                     variant="outline"
                     className="text-[10px] border-blue-300 dark:border-blue-700 text-blue-600 dark:text-blue-400 shrink-0"
                   >
-                    NAS
+                    {shareLabelFor(att.networkPath) ?? "NAS"}
                   </Badge>
                   <button
                     type="button"