chore(backend): remove LocalDateTime usage, replaced with Instant

src/main/java/com/ddf/vodsystem/services/ClipService.java

@@ -8,7 +8,7 @@ import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.time.LocalDateTime;
+import java.time.Instant;
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.ExecutionException;
@@ -208,7 +208,7 @@ public class ClipService {
         clip.setUser(user);
         clip.setTitle(options.getTitle() != null ? options.getTitle() : "Untitled Clip");
         clip.setDescription(options.getDescription() != null ? options.getDescription() : "");
-        clip.setCreatedAt(LocalDateTime.now());
+        clip.setCreatedAt(Instant.now());
         clip.setWidth(options.getWidth());
         clip.setHeight(options.getHeight());
         clip.setFps(options.getFps());

src/main/java/com/ddf/vodsystem/services/StreamService.java

@@ -12,7 +12,7 @@ import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.time.LocalDateTime;
+import java.time.Instant;
 import java.util.*;
 
 @Service
@@ -37,7 +37,7 @@ public class StreamService {
             throw new AlreadyStreaming("User " + user.getUsername() + " is already streaming.");
         });
 
-        LocalDateTime now = LocalDateTime.now();
+        Instant now = Instant.now();
         Stream stream = new Stream();
         stream.setUser(user);
         stream.setStartDate(now);
@@ -52,7 +52,7 @@ public class StreamService {
                 .orElseThrow(() -> new IllegalStateException(
                         "No active stream found for user " + user.getUsername()));
 
-        stream.setEndDate(LocalDateTime.now());
+        stream.setEndDate(Instant.now());
         streamRepository.saveAndFlush(stream);
     }
 
@@ -63,7 +63,7 @@ public class StreamService {
                 .orElseThrow(() -> new IllegalStateException(
                         "No active stream found for user " + user.getUsername()));
 
-        stream.setLastSeen(LocalDateTime.now());
+        stream.setLastSeen(Instant.now());
         streamRepository.saveAndFlush(stream);
     }
 
@@ -97,11 +97,11 @@ public class StreamService {
     @Scheduled(fixedDelay = 30_000)
     @Transactional
     public void endStaleStreams() {
-        LocalDateTime cutoff = LocalDateTime.now().minusSeconds(HEARTBEAT_TIMEOUT_SECONDS);
+        Instant cutoff = Instant.now().minusSeconds(HEARTBEAT_TIMEOUT_SECONDS);
         List<Stream> stale = streamRepository.findByEndDateIsNullAndLastSeenBefore(cutoff);
         if (stale.isEmpty()) return;
 
-        LocalDateTime now = LocalDateTime.now();
+        Instant now = Instant.now();
         for (Stream stream : stale) {
             stream.setEndDate(now);
             logger.warn("Stream {} for user {} ended due to heartbeat timeout", stream.getId(), stream.getUser().getUsername());

src/main/java/com/ddf/vodsystem/services/UserService.java

@@ -17,7 +17,7 @@ import org.springframework.stereotype.Service;
 import java.io.IOException;
 import java.security.GeneralSecurityException;
 import java.security.SecureRandom;
-import java.time.LocalDateTime;
+import java.time.Instant;
 import java.util.Collections;
 import java.util.HexFormat;
 import java.util.Optional;
@@ -77,7 +77,7 @@ public class UserService {
 
         if (existingUser.isEmpty()) {
             user.setRole(0);
-            user.setCreatedAt(LocalDateTime.now());
+            user.setCreatedAt(Instant.now());
             user.setStreamKey(generateStreamKey());
             return userRepository.saveAndFlush(user);
         }

src/main/java/com/ddf/vodsystem/services/media/CompressionService.java

@@ -38,7 +38,7 @@ public class CompressionService {
                 outputFile,
                 clipOptions
         );
-        CommandOutput result = CommandRunner.run(command, line -> setProgress(line, progress, clipOptions.getDuration()));
+        CommandOutput result = CommandRunner.run(command, line -> CommandRunner.setProgress(line, progress, clipOptions.getDuration()));
         progress.markComplete();
 
         return CompletableFuture.completedFuture(result);

src/main/java/com/ddf/vodsystem/services/media/StreamActionsService.java

@@ -72,6 +72,7 @@ public class StreamActionsService {
             logger.info("Saving section with ({} segments) to '{}'",
                     segments.size(), outputFile);
             CommandRunner.run(command, line -> CommandRunner.setProgress(line, progressTracker, duration));
+            progressTracker.markComplete();
 
             return CompletableFuture.completedFuture(outputFile);
         } catch (Exception e) {