Solana X Raid (custom) — one payment creates a custom cluster of jobs for a single X post: 50 likes (≈ 1.25 USDC), 20 reposts (≈ 0.5 USDC), 23 comments (≈ 0.5750000000000001 USDC), 5 bookmarks (≈ 0.125 USDC). Per-slot price is 0.025 USDC; total is ≈ 2.45 USDC (sum of slots × 0.025). Flow: call without X-PAYMENT returns 402 discovery; retry the exact same URL with X-PAYMENT to confirm payment and c