t27b ledger: 14 specs on master have no row; bless from lab run a97cb9e55 #8170

Problem

After #8059, #8056, #7913, #7918 and #7925 landed, master's docs/reports/t27b_expectations.json (source: lab run 6b6386e) lags the newest t27b lab run on master (a97cb9e, finished 2026-10-09T11:24:58Z). tri t27b ratchet --run <that run> is red: UNLISTED 14 (specs merged without a ledger row, all of them t27b pass: agent-claims-honest, agent-media-kie, agent-neuro-kie, port/scripts gen_w310/311/314/315/316/318/322, jtag/tdo_verdict, trios-cli cmd/gates, queen/dispatch_exit, verified/silicon_queue). Everything else is zero.

Master also stores max_not_pass 26 over 25 non-passing rows.

Boundary

• Edits only docs/reports/t27b_expectations.json (by tri t27b ratchet --bless, no hand edit) and adds one docs/now/ entry.
• Leaves specs/ml/recurrent/self_attention.t27 to spec(self_attention): declare default_input, so the reference verdict is the same on every host (Closes #8051) #8145, and specs/tri/t27b/eval_arith.t27 to t27b: eval::arith, the reference interpreter's exact arithmetic, moves to specs/tri/t27b/eval_arith.t27 (Closes #8057) #8086 (not on master yet).
• Data only; no code.

Requirements

• Bless from lab run a97cb9e; max_not_pass equals the real non-pass count.
• Rows sorted, no duplicate paths, every path exists on the tree.

Success Criteria

• tri t27b ratchet --run runs/a97cb9e55...json is green (all kinds 0).
• path count == unique path count; max_not_pass == count of rows that are neither pass nor pass_vacuous (25).

Refs #6063

User Scenarios

• Given the docs/reports/t27b_expectations.json reflects lab run 6b6386e, when the t27b ratchet is run against the newer lab run a97cb9e, then it reports 14 UNLISTED specs and a mismatched max_not_pass value.
• Given the 14 missing specs all pass in lab run a97cb9e, when the expectations are blessed from that run, then the ratchet shows zero UNLISTED, zero NEW_FAIL, and zero other discrepancies.
• Given the blessed expectations are committed with a docs/now/ entry, when tri t27b ratchet --run runs/a97cb9e55...json executes, then it exits green with all kind counts at 0.

Requirements

• FR-001: The docs/reports/t27b_expectations.json file MUST be updated by running tri t27b ratchet --bless --run a97cb9e55 (or equivalent) so that it reflects lab run a97cb9e.
• FR-002: The max_not_pass field in the expectations MUST equal the actual count of rows that are neither pass nor pass_vacuous (25).
• FR-003: Every row in the expectations MUST have a unique path that exists in the repository tree, and rows MUST be sorted.
• FR-004: A new entry MUST be added under docs/now/ documenting this bless operation.
• FR-005: The specs specs/ml/recurrent/self_attention.t27 and specs/tri/t27b/eval_arith.t27 MUST NOT be added or modified in this change (they are tracked in spec(self_attention): declare default_input, so the reference verdict is the same on every host (Closes #8051) #8145 and t27b: eval::arith, the reference interpreter's exact arithmetic, moves to specs/tri/t27b/eval_arith.t27 (Closes #8057) #8086 respectively).