fix(web): judge every word of a reconciled endpoint that is not a connector, so an unprefixed alias is not called local (#52)

The previous version kept only words containing '/' and dropped the rest, so a bare
TAPIR_TRANSCRIBE_MODEL alias in the composite produced a false 'all local' result. Found
by the PR #58 re-review; red tests for a bare alias, an alias with a space and a split
'berget / x' first.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/web/uploads.go

@@ -275,24 +275,21 @@ func titleFromFilename(name string) string {
 // definition the start-up validation uses, not a second string match here (#52).
 //
 // The endpoint is one alias, except for the two-engine path (ADR-034), which writes
-// "<base> + <alt>, reconciled by <model>". Every alias in it is judged on its own, so a
-// composite of local models is local and one naming a cloud alias names that provider.
+// "<base> + <alt>, reconciled by <model>". Every word of it that is not that format's own
+// connector is judged as an alias, so a composite of local models is local, and anything
+// else (a cloud alias, one with no provider prefix, one with a space in it) is not.
 func cloudProvider(endpoint string) (string, bool) {
-	if strings.TrimSpace(endpoint) == "" {
-		return "", false
-	}
-	aliases := []string{}
 	for _, tok := range strings.Fields(endpoint) {
-		if tok = strings.Trim(tok, ","); strings.Contains(tok, "/") {
-			aliases = append(aliases, tok)
+		tok = strings.Trim(tok, ",")
+		switch tok {
+		case "", "+", "reconciled", "by":
+			continue
 		}
-	}
-	if len(aliases) == 0 {
-		aliases = append(aliases, strings.TrimSpace(endpoint))
-	}
-	for _, a := range aliases {
-		if !config.IsLocalModel(a) {
-			provider, _, _ := strings.Cut(a, "/")
+		if !config.IsLocalModel(tok) {
+			provider, _, _ := strings.Cut(tok, "/")
+			if provider == "" {
+				provider = tok
+			}
 			return provider, true
 		}
 	}