fix(SigningRequirementValidator): require drawing even without placed elements

needsCreateSignature previously required visibleElements.some(...) to be true,
meaning it only triggered when the document had a pre-placed visual element box
for the signer. With GRAPHIC_ONLY render mode (canCreateSignature=true) and no
placed box, the check always returned false and the drawing prompt was never
shown.

Fix: when signerHasSignRequest=true is provided, return true immediately after
confirming the signer has a signRequestId — the visual box placement is
irrelevant for deciding whether to ask for a drawing.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/services/SigningRequirementValidator.ts

@@ -35,6 +35,7 @@ interface ValidatorConfig {
 	errors?: Array<{ code?: number; [key: string]: unknown }>
 	hasSignatures?: boolean
 	canCreateSignature?: boolean
+	signerHasSignRequest?: boolean
 	[key: string]: unknown
 }
 
@@ -110,14 +111,22 @@ export class SigningRequirementValidator {
 	}
 
 	needsCreateSignature(config: ValidatorConfig = {}): boolean {
+		if (!config.canCreateSignature || config.hasSignatures) {
+			return false
+		}
+
 		const signer = this.signStore.document?.signers?.find(row => row.me) || {}
-		const visibleElements = this.signStore.document?.visibleElements || []
+		const signRequestId = (signer as { signRequestId?: string | number }).signRequestId
 
-		return !!(
-			(signer as { signRequestId?: string | number }).signRequestId &&
-			visibleElements.some(row => row.signRequestId === (signer as { signRequestId?: string | number }).signRequestId) &&
-			!config.hasSignatures &&
-			config.canCreateSignature
-		)
+		if (!signRequestId) {
+			return false
+		}
+
+		if (config.signerHasSignRequest) {
+			return true
+		}
+
+		const visibleElements = this.signStore.document?.visibleElements || []
+		return visibleElements.some(row => row.signRequestId === signRequestId)
 	}
 }