feat(apk): scanner le QR du poste depuis l'app (ZXing.Delphi, Apache 2.0)

Le scanner du systeme demandait avec quoi ouvrir le lien. L'app ouvre la
camera arriere, decode une image sur quatre et remplit URL + jeton des
qu'un lien pmserver://sync est lu. Rien n'est enregistre avant Save.

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

android-client/ThirdParty/ZXing/Common/ZXing.Helpers.pas

@@ -0,0 +1,62 @@
+unit ZXing.Helpers;
+
+{
+  * Copyright 2008 ZXing authors
+  *
+  * Licensed under the Apache License, Version 2.0 (the "License");
+  * you may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at
+  *
+  *      http://www.apache.org/licenses/LICENSE-2.0
+  *
+  * Unless required by applicable law or agreed to in writing, software
+  * distributed under the License is distributed on an "AS IS" BASIS,
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+
+  * Implemented by E. Spelt for Delphi
+}
+interface
+
+type
+  TArray = class
+    class function Clone(original: TArray<Integer>): TArray<Integer>; static;
+    class function CopyInSameArray(const Input: TArray<Integer>;
+      StartIndex: Integer; Len: Integer): TArray<Integer>; static;
+  end;
+
+implementation
+
+class function TArray.Clone(original: TArray<Integer>): TArray<Integer>;
+var
+  i: Integer;
+  l: SmallInt;
+begin
+  l := Length(original);
+  Result := TArray<Integer>.Create();
+  SetLength(Result, l);
+
+  for i := 0 to l - 1 do
+  begin
+    Result[i] := original[i];
+  end;
+end;
+
+class function TArray.CopyInSameArray(const Input: TArray<Integer>;
+  StartIndex: Integer; Len: Integer): TArray<Integer>;
+var
+  i, y: Integer;
+begin
+  Result := TArray.Clone(Input);
+
+  y := 0;
+  for i := StartIndex to (StartIndex + Len -1) do
+  begin
+    Result[y] := Input[i];
+    inc(y);
+  end;
+
+end;
+
+end.