Remove the assigned-user and label filters

Workflows now move every overdue card of their source stack. A new
migration drops filter_user_ids and filter_label_ids; workflows that
had a filter keep running unfiltered. The version goes to 35.1.0 so
the migration runs on update.

Removed along with the filters: the labels and participants endpoints
and their Deck lookups, the dead-filter warnings and markers, and
CardService::enrichCards() in the card read. enrichCards() only added
labels, assignees and comment counts, and ran a permission check
against Deck's frozen uid.

lib/Db/Workflow.php

@@ -18,10 +18,6 @@ use OCP\DB\Types;
  * @method void setSourceStackId(int $sourceStackId)
  * @method int getTargetStackId()
  * @method void setTargetStackId(int $targetStackId)
- * @method string|null getFilterUserIds()
- * @method void setFilterUserIds(?string $filterUserIds)
- * @method string|null getFilterLabelIds()
- * @method void setFilterLabelIds(?string $filterLabelIds)
  * @method bool getNotifyEmail()
  * @method void setNotifyEmail(bool $notifyEmail)
  * @method bool getEnabled()
@@ -35,8 +31,6 @@ class Workflow extends Entity implements \JsonSerializable {
 	protected $boardId;
 	protected $sourceStackId;
 	protected $targetStackId;
-	protected $filterUserIds;
-	protected $filterLabelIds;
 	protected $notifyEmail;
 	protected $enabled;
 	protected $lastRun;
@@ -48,38 +42,11 @@ class Workflow extends Entity implements \JsonSerializable {
 		$this->addType('boardId', Types::INTEGER);
 		$this->addType('sourceStackId', Types::INTEGER);
 		$this->addType('targetStackId', Types::INTEGER);
-		$this->addType('filterUserIds', Types::STRING);
-		$this->addType('filterLabelIds', Types::STRING);
 		$this->addType('notifyEmail', Types::BOOLEAN);
 		$this->addType('enabled', Types::BOOLEAN);
 		$this->addType('lastRun', Types::DATETIME);
 	}
 
-	/**
-	 * @return string[]
-	 */
-	public function getFilterUserIdsArray(): array {
-		return $this->decodeIds($this->getFilterUserIds());
-	}
-
-	/**
-	 * @return int[]
-	 */
-	public function getFilterLabelIdsArray(): array {
-		return array_map('intval', $this->decodeIds($this->getFilterLabelIds()));
-	}
-
-	/**
-	 * @return string[]
-	 */
-	private function decodeIds(?string $json): array {
-		if ($json === null || $json === '') {
-			return [];
-		}
-		$decoded = json_decode($json, true);
-		return is_array($decoded) ? array_values($decoded) : [];
-	}
-
 	public function jsonSerialize(): array {
 		return [
 			'id' => $this->getId(),
@@ -88,8 +55,6 @@ class Workflow extends Entity implements \JsonSerializable {
 			'boardId' => $this->getBoardId(),
 			'sourceStackId' => $this->getSourceStackId(),
 			'targetStackId' => $this->getTargetStackId(),
-			'filterUserIds' => $this->getFilterUserIdsArray(),
-			'filterLabelIds' => $this->getFilterLabelIdsArray(),
 			'notifyEmail' => (bool)$this->getNotifyEmail(),
 			'enabled' => (bool)$this->getEnabled(),
 			'lastRun' => $this->getLastRun()?->format(\DateTimeInterface::ATOM),