fix: repair fairies v5 benchmark CI failures

[AztecBot]

Summary

Refs aztec-packages#24223.

The latest merge-queue dequeue for aztec-packages#24223 was from CI3 run 28272090637, job 83771340260, not a merge conflict. The train PR is mergeable/clean; the dequeue came from CI failures in benchmark/test execution.

Failures found in the CI dashboard logs:

• client_flows/amm: expected 14 private execution steps, got 17 for ecdsar1 + sponsored_fpc AMM add-liquidity.
• client_flows/transfers: expected 11/13 private execution steps, got 13/14 for private_fpc transfers.
• bench_build_block: repeated sender tagging failures at index 21 with UNFINALIZED_TAGGING_INDEXES_WINDOW_LEN = 20.

This PR:

• Updates the benchmark app-call accounting for private FPC fee-note reception.
• Updates the AMM benchmark expected app-call count for offchain note reception of the two token transfers.
• Ties the unfinalized tagging window to MAX_PRIVATE_LOGS_PER_TX so benchmark blocks can keep several same-secret txs pending.
• Updates the recipient-sync batching test to expect RPC-cap chunking now that the window is larger than the node tag-request limit when combined across multiple secrets.

Verification

• git diff --check
• .claude/tests/agents_symlink_test
• CI3 run 28274656756 passed on current head a842b16424a0ead826c998b1c52b933eac44cbb7.
• ./bootstrap.sh ci was attempted as requested, but this checkout's root bootstrap does not define a bare ci command (Unknown command: ci). It also cannot connect to Docker for local Redis in this container.
• Focused local Jest for sync_tagged_private_logs.test.ts was attempted, but Yarn is not installed/generated in this workspace (Couldn't find the node_modules state file).

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Created by claudebox · group: slackbot

[AztecBot]

Flakey Tests

🤖 says: This CI run detected 2 tests that failed, but were tolerated due to a .test_patterns.yml entry.

\033FLAKED\033 (8;;http://ci.aztec-labs.com/974ad17597d0a74a�974ad17597d0a74a8;;�): yarn-project/kv-store/scripts/run_test.sh src/bench/sqlite-opfs-encrypted/map_bench.test.ts (2s) (code: 0)
\033FLAKED\033 (8;;http://ci.aztec-labs.com/ca52c19ccb4c15e8�ca52c19ccb4c15e88;;�): yarn-project/kv-store/scripts/run_test.sh src/sqlite-opfs/internal/ordered-binary-browser.test.ts (2s) (code: 0)