Pool Registry (MVP)

Ensures one canonical pool per token (paired with FeelsSOL), simplifies discovery, and exposes pool metadata.

Responsibilities

• Enforce uniqueness: one pool per token mint (token ↔ FeelsSOL).
• Track pool metadata: pool pubkey, token mint, tick_spacing, base_fee_bps, phase, status (paused/degraded flags), creation timestamp.
• Provide iteration for UI/indexers.

Integration

• initialize_pool registers the new pool; reject if an entry exists.
• Registry entry updates on phase changes and pause/resume events.

Seeds and Fields

PDA seed: b"pool_registry"

Entry fields (suggested):

• pool: Pubkey
• token_mint: Pubkey
• tick_spacing: u16
• base_fee_bps: u16
• phase: u8 (0=PriceDiscovery, 1=SteadyState)
• paused: bool
• created_at: i64
• last_update_slot: u64