Fix IntelliJ remote config sync freeze and JSON parsing issues (#8801)

* Fix IntelliJ remote config sync issues

- Only schedule sync job when remote server URL is configured
- Catch all exceptions including JsonSyntaxException
- Fix logic error where configJs and configJson overwrite each other
- Properly clean up sync job when cancelled

Fixes #8769

Co-authored-by: dallin <[email protected]>

Generated with [Continue](https://continue.dev)

Co-Authored-By: Continue <[email protected]>

* Fix config.js and config.json file path separation

Use separate file paths for JavaScript (config.js) and JSON (config.json)
configuration files to maintain proper separation of concerns.

Co-authored-by: dallin <[email protected]>

Generated with [Continue](https://continue.dev)

Co-Authored-By: Continue <[email protected]>

---------

Co-authored-by: continue[bot] <continue[bot]@users.noreply.github.com>
Co-authored-by: Continue <[email protected]>
Co-authored-by: Dallin Romney <[email protected]>

Author: 3 people

extensions/intellij/src/main/kotlin/com/github/continuedev/continueintellijextension/services/ContinueExtensionSettingsService.kt

@@ -1,6 +1,7 @@
 package com.github.continuedev.continueintellijextension.services
 
 import com.github.continuedev.continueintellijextension.constants.getConfigJsonPath
+import com.github.continuedev.continueintellijextension.constants.getConfigJsPath
 import com.github.continuedev.continueintellijextension.error.ContinueSentryService
 import com.google.gson.Gson
 import com.intellij.openapi.application.ApplicationManager
@@ -122,29 +123,43 @@ open class ContinueExtensionSettings : PersistentStateComponent<ContinueExtensio
                             connection.addRequestProperty("Authorization", "Bearer $token")
                     }.readString()
                 val response = Gson().fromJson(responseBody, ContinueRemoteConfigSyncResponse::class.java)
-                val file = File(getConfigJsonPath(URL(url).host))
-                response.configJs.let { file.writeText(it!!) }
-                response.configJson.let { file.writeText(it!!) }
-            } catch (e: IOException) {
+                val hostname = URL(url).host
+                
+                // Write configJson to config.json if present
+                if (!response.configJson.isNullOrEmpty()) {
+                    File(getConfigJsonPath(hostname)).writeText(response.configJson!!)
+                }
+                
+                // Write configJs to config.js if present
+                if (!response.configJs.isNullOrEmpty()) {
+                    File(getConfigJsPath(hostname)).writeText(response.configJs!!)
+                }
+            } catch (e: Exception) {
+                // Catch all exceptions including JsonSyntaxException
                 service<ContinueSentryService>().report(e, "Unexpected exception during remote config sync")
             }
         }
     }
 
     // Create a scheduled task to sync remote config every `remoteConfigSyncPeriod` minutes
     fun addRemoteSyncJob() {
-
+        // Cancel existing job if present
         if (remoteSyncFuture != null) {
             remoteSyncFuture?.cancel(false)
+            remoteSyncFuture = null
         }
 
-        instance.remoteSyncFuture = AppExecutorUtil.getAppScheduledExecutorService()
-            .scheduleWithFixedDelay(
-                ::syncRemoteConfig,
-                0,
-                continueState.remoteConfigSyncPeriod.toLong(),
-                TimeUnit.MINUTES
-            )
+        // Only schedule sync job if remote config server URL is configured
+        val remoteServerUrl = continueState.remoteConfigServerUrl
+        if (remoteServerUrl != null && remoteServerUrl.isNotEmpty()) {
+            instance.remoteSyncFuture = AppExecutorUtil.getAppScheduledExecutorService()
+                .scheduleWithFixedDelay(
+                    ::syncRemoteConfig,
+                    0,
+                    continueState.remoteConfigSyncPeriod.toLong(),
+                    TimeUnit.MINUTES
+                )
+        }
     }
 }