Land 25 green trios-chat port PRs as one combined PR #10096

25 open port PRs (trios-chat rings, Refs #8884 / #8887 and siblings) have green required checks and pass the duplicate-body ratchet together, but cannot land one by one:

• each adds one row to docs/reports/t27b_expectations.json; neighbouring rows collide, so every merge on master makes the next PR CONFLICTING again;
• each PR re-queues ~29 jobs, and the Actions queue did not finish one round before master moved (all rebuilt heads were still pending when 17 of them were already DIRTY again).

Land them as one PR: one commit per original PR, original author kept, ledger rows resolved as the union of both sides (sorted, one verdict per path; the resolver refuses a path with two different verdicts). Then close the 25 originals as landed.

Checked before opening, on the Railway lab:

• tools/dupe_scan.py on master plus all 25, applied in order: no error that master does not already have;
• only .t27, .trinity/seals/*.json, docs/now/*.md and the ledger change; no foreign code; no secret-shaped added line.

Not in this batch: #9650, #9651 and #9652 (each adds another copy of ids_equal / hashes32_equal, which master already carries in CR-CHAT-03), and 76 other port PRs that each add their own copy of the same helper (66 of them ids_equal([16]u8, [16]u8)); together they break the duplicate ratchet and need one shared helper first.