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/Service/WorkflowRunner.php

@@ -209,10 +209,6 @@ class WorkflowRunner {
 			return;
 		}
 
-		$filterUserIds = $workflow->getFilterUserIdsArray();
-		$filterLabelIds = $workflow->getFilterLabelIdsArray();
-		$this->warnAboutDeadFilters($workflow, $filterUserIds, $filterLabelIds);
-
 		// Resolved at most once per run, and only if a card actually moves
 		// and the workflow wants a mail — this is decoration, not a check.
 		$targets = null;
@@ -224,12 +220,6 @@ class WorkflowRunner {
 				continue;
 			}
 
-			$assignedUserIds = $this->deckService->getCardAssignedUserIds($card);
-			$labelIds = $this->deckService->getCardLabelIds($card);
-			if (!self::cardMatchesFilters($assignedUserIds, $labelIds, $filterUserIds, $filterLabelIds)) {
-				continue;
-			}
-
 			$this->logger->info('Card {card} ("{title}") matches workflow {id}; moving to stack {target}.', [
 				'app' => 'workflow_deck_automation',
 				'card' => $card->getId(),
@@ -327,52 +317,6 @@ class WorkflowRunner {
 		return true;
 	}
 
-	/**
-	 * A filter whose every entry has been deleted from the board is not an
-	 * error — the workflow still runs, it just cannot match a single card any
-	 * more, forever, without anything in the UI or the log saying so. That is
-	 * the one failure mode of this app that is completely invisible, so it
-	 * gets a log line on every run.
-	 *
-	 * Explicitly *not* a reason to disable the workflow or mail the user: a
-	 * filter with three labels of which one was deleted still works as
-	 * intended, and even a fully dead filter may be one board edit away from
-	 * being live again. The settings page shows the same condition in red.
-	 *
-	 * @param string[] $filterUserIds
-	 * @param int[] $filterLabelIds
-	 */
-	private function warnAboutDeadFilters(Workflow $workflow, array $filterUserIds, array $filterLabelIds): void {
-		if ($filterUserIds === [] && $filterLabelIds === []) {
-			return;
-		}
-
-		try {
-			$options = $this->deckService->findFilterOptions($workflow->getBoardId());
-		} catch (DeckUnavailableException $e) {
-			// Same rule as everywhere else: no answer is not a bad answer.
-			$this->logger->debug('Could not check the filters of workflow {id}: ' . $e->getMessage(), [
-				'app' => 'workflow_deck_automation',
-				'id' => $workflow->getId(),
-			]);
-			return;
-		}
-
-		$dead = self::findDeadFilters($filterUserIds, $filterLabelIds, $options['participantUids'], $options['labelIds']);
-
-		if ($dead !== []) {
-			$this->logger->warning(
-				'Workflow {id} can no longer match any card: none of its ' . implode('/', $dead)
-				. ' filter entries exists on board {board} any more',
-				[
-					'app' => 'workflow_deck_automation',
-					'id' => $workflow->getId(),
-					'board' => $workflow->getBoardId(),
-				],
-			);
-		}
-	}
-
 	/**
 	 * Compares the card's actual due timestamp against $now instead of Deck's own
 	 * Card::getDaysUntilDue(), which truncates both sides to midnight before diffing
@@ -386,64 +330,6 @@ class WorkflowRunner {
 		return $duedate !== null && $duedate < $now;
 	}
 
-	/**
-	 * Which filters cannot match anything any more, because not one of their
-	 * entries is still offered by the board. An empty filter is not dead, it
-	 * is "no restriction on this dimension" — the same reading as in
-	 * cardMatchesFilters(), and getting it backwards would report every
-	 * unfiltered workflow as broken.
-	 *
-	 * Static and side-effect free for the same reason as the matching logic:
-	 * testable without a Deck installation.
-	 *
-	 * @param string[] $filterUserIds
-	 * @param int[] $filterLabelIds
-	 * @param string[] $boardUserIds everyone who can hold a card on the board
-	 * @param int[] $boardLabelIds the board's remaining labels
-	 * @return string[] any of 'label', 'user', in that order
-	 */
-	public static function findDeadFilters(
-		array $filterUserIds,
-		array $filterLabelIds,
-		array $boardUserIds,
-		array $boardLabelIds,
-	): array {
-		$dead = [];
-		if ($filterLabelIds !== [] && array_intersect($filterLabelIds, $boardLabelIds) === []) {
-			$dead[] = 'label';
-		}
-		if ($filterUserIds !== [] && array_intersect($filterUserIds, $boardUserIds) === []) {
-			$dead[] = 'user';
-		}
-		return $dead;
-	}
-
-	/**
-	 * Pure filter-matching logic (kept static/side-effect free so it can
-	 * be unit tested without real Deck objects). Both filters are OR
-	 * inside themselves and AND between each other: an empty filter list
-	 * means "no restriction on this dimension".
-	 *
-	 * @param string[] $cardAssignedUserIds
-	 * @param int[] $cardLabelIds
-	 * @param string[] $filterUserIds
-	 * @param int[] $filterLabelIds
-	 */
-	public static function cardMatchesFilters(
-		array $cardAssignedUserIds,
-		array $cardLabelIds,
-		array $filterUserIds,
-		array $filterLabelIds,
-	): bool {
-		if ($filterUserIds !== [] && array_intersect($filterUserIds, $cardAssignedUserIds) === []) {
-			return false;
-		}
-		if ($filterLabelIds !== [] && array_intersect($filterLabelIds, $cardLabelIds) === []) {
-			return false;
-		}
-		return true;
-	}
-
 	/**
 	 * @throws DeckUnavailableException if Deck cannot be pinned to $user
 	 */