refactor: remove unused imports and streamline exception handling logic

frontend/core/local-db/src/jsMain/kotlin/at/mocode/frontend/core/localdb/DatabaseDriverFactory.js.kt

@@ -1,6 +1,5 @@
 package at.mocode.frontend.core.localdb
 
-import app.cash.sqldelight.db.QueryResult
 import app.cash.sqldelight.db.SqlCursor
 import app.cash.sqldelight.db.SqlDriver
 import app.cash.sqldelight.driver.worker.WebWorkerDriver

frontend/core/network/src/commonMain/kotlin/at/mocode/frontend/core/network/NetworkModule.kt

@@ -139,7 +139,7 @@ val networkModule = module {
           // But let's make it robust anyway.
 
           // We will use a safe lazy resolution pattern.
-        } catch (e: Exception) {
+        } catch (_: Exception) {
            // ignore
         }
         execute(request)
@@ -153,7 +153,7 @@ val networkModule = module {
             // Attempt to resolve TokenProvider from the capturing scope
             val tokenProvider = try {
                 koinScope.get<TokenProvider>()
-            } catch (e: Exception) {
+            } catch (_: Exception) {
                 null
             }
 

frontend/features/ping-feature/src/commonMain/kotlin/at/mocode/ping/feature/data/PingEventRepositoryImpl.kt

@@ -3,8 +3,6 @@ package at.mocode.ping.feature.data
 import at.mocode.frontend.core.localdb.AppDatabase
 import at.mocode.frontend.core.sync.SyncableRepository
 import at.mocode.ping.api.PingEvent
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
 
 // ARCH-BLUEPRINT: This repository implements the generic SyncableRepository
 // for a specific entity, bridging the gap between the sync core and the local database.