refactor(linkedin-studio): move agent fasit fixtures + tests out of agents/ (v0.5.3)

The 6 long-form-review fasit fixtures (agents/fixtures/*-cases.md) were registered
by Claude Code as junk `fixtures:*` agents because agents/ is scanned recursively.
They are test fixtures, not capabilities. Moved them + their 6 lint tests to
tests/ + tests/fixtures/ and retargeted the 5 agent fasit-refs. Count-neutral
namespace hygiene (ls agents/*.md still 19).

- agents/fixtures/*-cases.md            -> tests/fixtures/        (6)
- agents/__tests__/*-fixture.test.mjs   -> tests/                 (6; ../fixtures -> ./fixtures)
- 5 agent refs ${CLAUDE_PLUGIN_ROOT}/agents/fixtures -> /tests/fixtures
- version-sync 0.5.2 -> 0.5.3 (plugin.json / README badge / CLAUDE.md / CHANGELOG)

Verify: fixture-lint 35/35 at new path; render 20/20, hooks 139/139; test-runner 109/0/0.
Reinstall/reload required for the 6 spurious agents to leave the registry.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CrTb8ktf1XZWEVwgz5MTTo

tests/fixtures/editorial-reviewer-cases.md

@@ -0,0 +1,157 @@
+# Editorial-Reviewer Fasit Fixture
+
+The Del 4 production round (Maskinrommet, 2026-05-28) as the gold standard for the
+`editorial-reviewer` agent. The persona resonance sweep returned 15 flags across
+three personas (Linjeleder C primær + KI-seksjon B sekundær + IT-direktør A
+sekundær) and **every persona reported PASS / ready-to-publish**. KTG then found
+**eight editorial points on first reading** — and only ~25 % of them overlapped
+anything the personas had touched. The other six were craft/architecture blind
+spots. Those eight points are the fasit below: a correct `editorial-reviewer` run
+on Del 4 v5 should surface **comparable flags**, mapped to the two axes with
+consistent severities.
+
+This file is a *fasit*, not a test harness. The structural lint lives in
+`agents/__tests__/editorial-reviewer-fixture.test.mjs`. Whether the agent's live
+flags actually reproduce these directions is `[GATE]`/`[OPERATØR]` — it is **not**
+self-certified here.
+
+> **The jury judges; the writer writes.** Every expected output below is
+> **direction, not rewritten copy.** A correct agent run hands back flags + a
+> severity — never edited prose. (`Foreslått retning`, not a new sentence.)
+
+> **Why this gate exists.** A persona PASS measures *reader response*, not *craft*.
+> Six of these eight points were invisible to the persona sweep because they are
+> architecture and prose-craft defects, not resonance defects. The numbers tell
+> the story: persona overlap ≈ 2/8; editorial-only ≈ 6/8.
+
+---
+
+## The two axes (the agent judges on exactly these)
+
+Both axes are the operationalized mirror of the **Maskinrommet skrivekontrakt
+§C2** — §C2 is the source of truth; this fixture and the agent's checklist follow
+it. (§C2 is the craft half of the writing contract; §A — skeleton-before-prose —
+is codified in `references/longform-quality-rules.md` rule 8.)
+
+
+- **Prosa-håndverk** (mechanical, grep-able): P1 tankestrek-tetthet · P2 ordrette
+  gjentakelser · P3 postulerte tall uten kilde/hedge · P4 indre selvmotsigelse ·
+  P5 versal-tic.
+- **Narrativ-arkitektur** (evaluative): A1 konkret instansiering · A2 teori-anker
+  for hypoteser · A3 serietittel-symmetri · A4 like-brukbar handling per adressat ·
+  A5 konklusjon ikke overlastet.
+
+## Severity (every flag carries exactly one)
+
+- **BLOCK** — misrepresents the piece or loses the takeaway.
+- **REWORK** — a real craft/architecture weakness, not load-bearing-fatal.
+- **NICE** — cheap polish, fold in if convenient.
+
+---
+
+## The eight Del 4 editorial points (fasit)
+
+Each case states the point KTG raised, the axis it belongs to, the expected
+severity, and the direction a correct agent run returns. The persona-overlap
+column records whether the persona sweep had already (partially) touched it —
+the whole reason the gate is needed is the rows marked **blindsone**.
+
+### Case 1 — manglende konkret eksempel (abstract figure never instantiated)
+
+- **Axis:** A1 (arkitektur) · **Severity:** REWORK
+- **Persona overlap:** delvis (KI-seksjon B brushed it) — *not* a pure blind spot.
+- **Fasit / direction:** An abstract figure carries the section but never lands on
+  one concrete case the reader can picture. Direction: instantiate with a single
+  verifiable (preferably Norwegian) case — do not list several. The agent flags
+  the *absence of instantiation*; it does not supply the case.
+
+### Case 2 — postulert tall uten kilde eller hedge (postulated number)
+
+- **Axis:** P3 (prosa) · **Severity:** REWORK
+- **Persona overlap:** delvis (IT-direktør A brushed it).
+- **Fasit / direction:** A specific figure is stated as fact with neither an inline
+  source marker nor a hedge. This is distinct from a fact-check finding — Step 5
+  verifies numbers that *have* a provenance; here the provenance is simply
+  **absent**. Direction: source it or hedge it ("anslagsvis"); else cut.
+
+### Case 3 — manglende SDT-anker for tillit-effekt (unanchored hypothesis) — BLINDSONE
+
+- **Axis:** A2 (arkitektur) · **Severity:** BLOCK
+- **Persona overlap:** none — pure blind spot.
+- **Fasit / direction:** A psychological hypothesis about a trust effect is asserted
+  as if established, with no named theory anchor (e.g. Self-Determination Theory)
+  and no explicit hedge. A hypothesis dressed as a finding is an architecture
+  defect. Direction: anchor in a named model OR mark it explicitly as hypothesis.
+
+### Case 4 — brutt serietittel-kobling (broken series-title symmetry) — BLINDSONE
+
+- **Axis:** A3 (arkitektur) · **Severity:** REWORK
+- **Persona overlap:** none — pure blind spot.
+- **Fasit / direction:** The part does not bind back to the series premise / its own
+  title — it floats free of the whole. Direction: tie the part's argument back to
+  the series title so the reader feels the part-of-a-whole. (N/A only for a
+  standalone edition; Del 4 is part of a series, so it applies.)
+
+### Case 5 — manglende småbedrifts-tommelfingerregel (stranded addressee) — BLINDSONE
+
+- **Axis:** A4 (arkitektur) · **Severity:** BLOCK
+- **Persona overlap:** none — pure blind spot.
+- **Fasit / direction:** The text addresses more than one reader but the actionable
+  takeaway only serves one; the small-business reader leaves with nothing they can
+  do. Direction: add a small-business rule of thumb so each addressee gets an
+  equally-usable action. (Stranding an addressee = BLOCK: that reader has no
+  takeaway at all.)
+
+### Case 6 — ordrette gjentakelser (verbatim repetition) — BLINDSONE
+
+- **Axis:** P2 (prosa) · **Severity:** REWORK
+- **Persona overlap:** none — pure blind spot.
+- **Fasit / direction:** A distinctive phrase recurs more than twice. Direction:
+  vary or cut the repeats; keep at most the one load-bearing use. `grep`-findable.
+
+### Case 7 — tankestrek-tetthet (em-dash over-density) — BLINDSONE
+
+- **Axis:** P1 (prosa) · **Severity:** REWORK
+- **Persona overlap:** none — pure blind spot.
+- **Fasit / direction:** Em-dashes run above ~1 per 50 words (clusters within
+  paragraphs). Direction: thin them to the local target; the em-dash is a tool,
+  not a tic. Report the count. `grep`-findable.
+
+### Case 8 — indre selvmotsigelse (internal contradiction) — BLINDSONE
+
+- **Axis:** P4 (prosa) · **Severity:** BLOCK
+- **Persona overlap:** none — pure blind spot.
+- **Fasit / direction:** Two passages cannot both be true (an assertion the
+  conclusion silently reverses). Direction: name the contradiction and resolve one
+  side — a contradiction misrepresents the piece, so BLOCK.
+
+---
+
+## Expected aggregate (what a correct run looks like)
+
+- **Total flags:** 8 (well within the ≤10 cap — no suppression needed).
+- **By axis:** prosa-håndverk = 4 (P1, P2, P3, P4) · narrativ-arkitektur = 4 (A1,
+  A2, A3, A4). A5 (overloaded conclusion) and P5 (versal-tic) did **not** flag on
+  Del 4 v5 — record them clean.
+- **By severity:** BLOCK = 3 (A2, A4, P4) · REWORK = 5 (A1, P3, A3, P2, P1) ·
+  NICE = 0.
+- **Persona overlap:** 2/8 (Cases 1 + 2, both delvis) · editorial-only blind
+  spots: 6/8 (Cases 3–8). This 6/8 is the quantified case for the gate.
+
+A run that reproduces ~these eight directions, on ~these axes, with ~these
+severities, is **comparable** to KTG's actual editorial round — the bar
+acceptance-criterion #8 sets. Exact wording is the editor's; the agent returns
+direction, never copy.
+
+## Calibration boundary
+
+Whether the agent's live flags truly match this fasit is judged by the operator
+(`[OPERATØR]`), not self-certified here. This fixture is the calibration target,
+the same way `persona-reviewer-cases.md` and `fact-checker-cases.md` are fasits
+for their agents.
+
+> **Live-run note.** A live run on Del 4 v5 requires (a) a Claude Code session
+> reload — a freshly added agent is not invokable until the plugin agent set is
+> rebuilt at session start — and (b) read access to the Del 4 v5 draft in the
+> Maskinrommet series folder. Until both hold, this fixture is the gold-standard
+> of record.