fix: address AI review findings for #706 recenterAccess removal

- DeployBase.sol: remove broken inline second recenter() (would always
  revert with 'recenter cooldown' in same Forge broadcast); replace with
  operator instructions to run the new BootstrapVWAPPhase2.s.sol script
  at least 60 s after deployment
- BootstrapVWAPPhase2.s.sol: new script for the second VWAP bootstrap
  recenter on Base mainnet deployments
- StrategyExecutor.sol: update stale docstring that still described the
  removed recenterAccess bypass; reflect permissionless model with vm.warp
- TestBase.sol: remove vestigial recenterCaller parameter from all four
  setupEnvironment* functions (parameter was silently ignored after
  setRecenterAccess was removed); update all callers across six test files
- bootstrap-common.sh: fix misleading retry recenter in
  seed_application_state() — add evm_increaseTime 61 before evm_mine so
  the recenter cooldown actually clears and the retry can succeed

All 210 tests pass.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/bootstrap-common.sh

@@ -196,8 +196,8 @@ seed_application_state() {
     fi
 
     bootstrap_log "Swap returned 0 KRK — recentering and retrying"
-    # Mine a few blocks to advance time, then recenter
-    cast rpc --rpc-url "$ANVIL_RPC" evm_mine >>"$LOG_FILE" 2>&1 || true
+    # Advance 61 s to clear the 60-second recenter cooldown, then mine a block.
+    cast rpc --rpc-url "$ANVIL_RPC" evm_increaseTime 61 >>"$LOG_FILE" 2>&1 || true
     cast rpc --rpc-url "$ANVIL_RPC" evm_mine >>"$LOG_FILE" 2>&1 || true
     local recenter_pk="${TXNBOT_PRIVATE_KEY:-$DEPLOYER_PK}"
     cast send --rpc-url "$ANVIL_RPC" --private-key "$recenter_pk" \