Fixed

Retry idempotent Agent execution and provider-capacity releases once when Core is temporarily unavailable, reducing stale capacity leases that can block later turns.
Restore a failed turn's submitted prompt when it ended before the first checkpoint, so refreshing the Agent panel keeps the conversation context instead of showing the new-chat welcome.
Keep the empty Agent composer at its natural row height when typing begins instead of letting auto-resize collapse it to one line.
Return compact Resource matches for Agent catalog searches and load field and relationship details only for selected Resource keys, preventing multi-search dashboard requests from exhausting their context.
Keep chart lines visible while showing hover tooltips.

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