Add mobile reliability fixes, Bahasa Indonesia UI, and continue OCR accuracy tuning

Reliability/PoC hardening: dedupe uploads by file_hash, surface editor sync
failures instead of a false success SnackBar with a retry-without-re-OCR path,
bound the OCR pipeline fetches with timeouts, share a single ApiClient/Dio
instance app-wide, tune capture JPEG quality, and add an opt-in
docker-compose.demo.yml for a production-mode run ahead of client demos.

Translate all Flutter-side user-facing text (screens, validators, SnackBars,
the printed delivery receipt, and shared API error messages) to Bahasa
Indonesia.

Also includes in-progress OCR parser/accuracy-tuning work from the same
session: table column/unit normalization fixes, store/customer master data,
accuracy history log, and test-image renaming/cleanup.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eRAsLqN9Sg1b9YPz22Lxz

lib/features/auth/login_screen.dart

@@ -74,13 +74,13 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
                   ),
                   const SizedBox(height: 24),
                   Text(
-                    'Welcome Back',
+                    'Selamat Datang Kembali',
                     style: AppConfig.h1,
                     textAlign: TextAlign.center,
                   ),
                   const SizedBox(height: 8),
                   Text(
-                    'Sign in to sync your documents to the central server',
+                    'Masuk untuk menyinkronkan dokumen Anda ke server pusat',
                     style: AppConfig.bodyMedium,
                     textAlign: TextAlign.center,
                   ),
@@ -88,12 +88,12 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
                   TextFormField(
                     controller: _idController,
                     decoration: const InputDecoration(
-                      labelText: 'Admin Provided ID',
+                      labelText: 'ID dari Admin',
                       prefixIcon: Icon(Icons.person_outline),
                     ),
                     validator: (value) {
                       if (value == null || value.trim().isEmpty) {
-                        return 'Username/ID cannot be empty';
+                        return 'Username/ID tidak boleh kosong';
                       }
                       return null;
                     },
@@ -103,15 +103,15 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
                     controller: _passwordController,
                     obscureText: true,
                     decoration: const InputDecoration(
-                      labelText: 'Password',
+                      labelText: 'Kata Sandi',
                       prefixIcon: Icon(Icons.lock_outline),
                     ),
                     validator: (value) {
                       if (value == null || value.trim().isEmpty) {
-                        return 'Password cannot be empty';
+                        return 'Kata sandi tidak boleh kosong';
                       }
                       if (value.trim().length < 6) {
-                        return 'Password must be at least 6 characters';
+                        return 'Kata sandi minimal 6 karakter';
                       }
                       return null;
                     },
@@ -121,18 +121,18 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
                     height: 56,
                     child: ElevatedButton(
                       onPressed: _isLoading ? null : _handleLogin,
-                      child: _isLoading 
+                      child: _isLoading
                           ? const SizedBox(
-                              width: 24, 
-                              height: 24, 
+                              width: 24,
+                              height: 24,
                               child: CircularProgressIndicator(color: Colors.white, strokeWidth: 3)
-                            ) 
-                          : const Text('Login'),
+                            )
+                          : const Text('Masuk'),
                     ),
                   ),
                 const SizedBox(height: 24),
                 Text(
-                  'Please contact the central admin for credentials.',
+                  'Hubungi admin pusat untuk mendapatkan kredensial akun.',
                   style: AppConfig.bodySmall,
                   textAlign: TextAlign.center,
                 ),