Rewrite articles with clearer inputs and more reliable previews

Prepare rewrites in a layout consistent with Quick Create and Auto Generate, using tag-style topic and keyword inputs. Images found through web search remain visible in article previews. Editor tooltips stay beside their controls, and the component palette uses drag actions to avoid accidental insertions.

Credit calculations now use the correct totals. The workspace recovers correctly after a failed chat. Footer contact and status links now lead to WhatsApp and the service status page.