feat(marketing): an unnamed speaker is written in the third person

[jgleal]

What happened

In orbitant-employents, Mercuria holds the draft until somebody names whoever speaks in an interview or talk (ADR-026). The owner ruled (2026-09-26, reconfirmed 2026-10-08) that the ask must not block: write first, ask once at the end, then place the name with exact substitutions and never rewrite the piece.

That work was parked (weorbitant/orbitant-employents#137) for one measured reason: with nobody named, Sonnet writes the speaker's story in the first person ("mi equipo", "nuestro almacén", ADR-026, 2026-09-15), and then a name has nowhere to go. On a third-person draft ("la persona entrevistada…") placing the name worked. How to write about somebody not named yet is a writing rule, so under ADR-020 it belongs here, not in the harness.

What changes

• blog-post-create: new subsection under Input, "Spoken material whose speaker is not named yet". Third person for everything the speaker lived; one neutral phrase used the same way throughout ("la persona entrevistada", "la persona que da la charla"); no invented name, role, gender or company; neither the signer nor the institutional "nosotros" takes their story.
• x-thread, x-post: the same rule beside "Somebody else's words" ("the person interviewed", "the speaker").
• linkedin-post: the same rule in Input, for a source resting on an unnamed speaker.
• yt-description: the speaker line uses the neutral phrase instead of a name nobody gave.
• Version: marketing 1.9.0 -> 1.10.0 (MINOR, behaviour change), meta 1.4.0 -> 1.5.0, each changed skill's frontmatter bumped.

Talks are covered as well as interviews: a recorded Knowledge Sharing reaches the same path.

Measured

Measured from orbitant-employents (weorbitant/orbitant-employents#269) with this branch's built package swapped into node_modules locally (nothing published, no pin changed), Sonnet as the writer, five blog-post-create drafts from an unnamed interview (x3) and talk (x2):

• neutral phrase used 5/5, speaker's story in the first person in the body 0/5 (one slip in a slug: "asi-bajamos-de-40-a-7-minutos");
• a later name placed by grounded substitution 5/5, every body reference;
• baseline on 1.9.0 with the same harness fact line, 1 rep: no first-person claim either, but "ella" and varied phrasing, so the name found 2 places and every "ella" stayed. The rule is what gives a name somewhere to go.

Not measured: linkedin-post, x-thread, x-post and yt-description outputs.

Checks

npm run check green (lint, validate, tests, package build: @orbitant/brain-marketing@1.10.0, @orbitant/brain@1.5.0).

Not merged and not published: a release tag is needed before the employents PR can pin 1.10.0.