v0.152.0 + felhom-samba 1.1.0 — mDNS for macOS, and the card stops offering a dead form

Capture on the box disproved the first theory: macOS DOES send a correct NBNS
query for <NAME><20> and nmbd DOES answer it correctly in 140us (flags 0x8580,
RCODE=0, right address) - macOS just never acts on it. NetBIOS there feeds
legacy browsing, not smb:// URL resolution, so the bare name can never work on
a Mac and nmbd was never the broken part.

felhom-samba 1.1.0 adds avahi + dbus, with avahi-daemon.conf and the _smb._tcp
service file templated from FELHOM_SERVER_NAME so a rename re-advertises. Both
daemons are non-fatal on failure - a discovery gap must not become an outage.

v0.151.0's card offered smb://<NAME> for Mac, which is exactly the dead form;
now smb://<NAME>.local. Windows keeps the flat \\<NAME>, which nmbd serves
correctly. Red-proofed both directions.

NOT claimed: Finder-sidebar discovery - published and answering on the wire,
but not observed working on the test Mac. Recorded OPEN.

TestRenderSambaCompose pinned the literal 1.0.0 tag, so an image bump read as a
renderer regression; now derives from SambaImage and asserts non-:latest.

controller/internal/web/templates/sharing.html

@@ -75,7 +75,7 @@
     </div>
     <div class="form-hint">
         Mac: Finder &rarr; Ugrás &rarr; Csatlakozás a szerverhez:
-        <span class="mono">smb://{{.SMBServerName}}</span>
+        <span class="mono">smb://{{.SMBServerName}}.local</span>
     </div>
     {{if .SMBDirectAddress}}
     <div class="form-hint">