Build an AI D&D campaign generator for dungeon masters with the following numbered features: 1. A campaign setup wizard covering level range, tone from heroic to grimdark, setting, session count, and content boundaries the tool always respects. 2. Generation of a full campaign arc with premise, three-act structure, factions, and a villain whose motive and methods stay consistent. 3. An NPC forge that produces stat-ready characters with voices, secrets, and hooks, and remembers them across the campaign bible. 4. A dungeon generator with mapped room flow, traps scaled to party level, treasure, and a boss encounter. 5. Session prep packs per session: recap of last time, scenes to run, secrets and clues list, and possible paths the players might take. 6. An at-table improv assistant that answers referee questions instantly, such as what is behind this door, using the campaign context so answers stay canon. 7. A campaign bible that automatically logs every NPC, place, event, and player action so continuity holds across months of play. 8. Rules support with SRD-based lookups so the generator keeps stat blocks and spell references legal. 9. Homebrew mode where the DM's custom world documents are loaded as context before generation. 10. One-click exports to Markdown and VTT-friendly formats for maps and encounters.