feat(mm): quote 8 rungs a side so the funding is actually deployed

[robertleifke]

What's wrong

The book shows five rungs a side totalling $148.83, against 310 USDC + 448,613 cNGN (~$638) actually held in subaccount 15. Roughly $340 is idle — visible as empty rows above the asks and below the bids.

buildLevels walks outward placing ORDER_SIZE × LEVEL_SIZE_MULT^k until the side's budget is spent, and that budget is the inventory, not the ladder. With only 5 levels it exhausts the rungs long before the money:

MM_QUOTE_LEVELS	Rungs/side	Ask deployed	Bid deployed	Idle
5 (today)	5	148.83	148.83	~340
6	6	198.60	198.60	240
7	7	258.32	258.32	121
8	8	310.00	327.70	0
9+	8	310.00	327.70	0

So the fix is levels, not size. Nine or more changes nothing — the inventory binds first.

Change

MM_QUOTE_LEVELS 5 → 8. ORDER_SIZE (40) and LEVEL_SIZE_MULT (1.2) are unchanged, so the touch keeps its current size and the geometry is the same; the ladder just doesn't stop early.

Live depth roughly doubles, from ~$298 to ~$638.

Cost

16 resting orders instead of 10, re-signed on the 60s rolling expiry: ~21 cancels a minute rather than ~13. Cancels are off-chain and don't touch the executor's gas.

The outermost rungs may clip in the order-book panel — asks are justify-end and bids top-aligned, both overflow-hidden, so what gets cut is the far end of the book, never the touch.

Plan

Plan: 1 to add, 1 to change, 1 to destroy
  # aws_ecs_service.market_maker will be updated in-place
  # aws_ecs_task_definition.market_maker must be replaced
    ~ value = "5" -> "8"

Env-only. No image change, no desired_count, no other resources.

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