Add Uranus memepad + DeDust CPMM v3 swap parsers

[stepandra]

What’s in this PR

Uranus memepad trades (Buy/Sell) parser → emits parsed.uranus_trade.
DeDust CPMM v3 swaps parser → exposed as cpmm_pool_v3 (DEX_DEDUST_CPMM_V3).
dex_trades wiring for Uranus (trade + launch on first graduation) + TOPIC_URANUS.
Schema updates: parsed.uranus_trade table + enum value cpmm_pool_v3.

Validation (backfill)

• Uranus buy: 3832 events, no dupes, volume_usd filled; is_graduated=true only once per master (19 total).
• Uranus sell: 2166 events, no dupes, volume_usd filled; is_graduated empty for all.
• CPMM v3 swaps: 13,149 events;

TL‑B Schemas (only the parts we actually parse)

Uranus events

buy_event#a0aa6bc2
  trader_address:MsgAddress
  amount_in:Coins
  amount_out:Coins
  fees:TradeFees
  current_supply:Coins
  raised_funds:Coins
  is_graduated:Bool
= Event;

sell_event#3ab0fccc
  trader_address:MsgAddress
  amount_in:Coins
  amount_out:Coins
  fees:TradeFees
  current_supply:Coins
  raised_funds:Coins
= Event;

CPMM v3 pool swap event

swap#78e79ba4
  x_to_y:Bool
  amount_in:Coins
  amount_out:Coins
  initiator_address:MsgAddressInt
  recipient_address:MsgAddressInt
  next_state:^PoolUpdatedState
  fees:^SwapFees
= PoolEvent;

[ohld]

@aleksandrkaekhtin please check