docs(linkedin-studio): add S27/S28 reference-consistency pass to hardening queue

Operator promoted open follow-up #1 (reference-consistency) to scheduled work —
all SSOT divergences must be fixed, planned across sessions rather than crammed.
Added two sessions to the queue, run after S26:
- S27 (A): "penalty/penalizes" framing -> SSOT (troubleshooting-guide.md:127,
  analyze.md:102, audit.md:61 "topic-relevance penalty").
- S28 (B): format magnitudes -> SSOT (video.md:69, linkedin-formats.md
  "30% zero-distribution").
Surgical SSOT-reconciliation of already-hardened files, NOT full re-hardening;
hardening-class (commit local, no push).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016qgzo6rxthw7KuxHjn5vyE

docs/hardening/plan.md

@@ -89,12 +89,27 @@ that exercises the command's real path:
 | S3 react | S10 headless-review | S17 audit | S24 create |
 | S4 multiplatform | S11 pivot | S18 ab-test | S25 measure |
 | S5 carousel | S12 firsthour | S19 strategy | S26 linkedin |
-| S6 video | S13 calendar | S20 competitive | |
-| S7 batch | S14 import | S21 monetize | |
+| S6 video | S13 calendar | S20 competitive | S27 ref-consistency A |
+| S7 batch | S14 import | S21 monetize | S28 ref-consistency B |
 | S8 pipeline | S15 report | S22 outreach | |
 
 *S9 newsletter (16-phase) may split into S9a/S9b. Otherwise one command = one session.
 
+**S27/S28 — reference-consistency pass (added 2026-06-19, operator-approved; promotes open
+follow-up #1 to scheduled work).** NOT full re-hardening of already-✅ commands — surgical
+SSOT-reconciliation of the documented divergences, same tool-grounded discipline
+(read-and-show → grep-confirm → re-grep final):
+
+- **S27 (A) — "penalty/penalizes" framing → SSOT:** `references/troubleshooting-guide.md:127`
+  ("External link overuse — LinkedIn **penalizes**" → "correlate with lower reach"),
+  `commands/analyze.md:102` (milder echo), `commands/audit.md:61` ("topic-relevance **penalty**"
+  → SSOT frames relevance as a positive driver, not a named penalty).
+- **S28 (B) — format magnitudes → SSOT:** `commands/video.md:69` + `references/linkedin-formats.md`
+  (the "30% zero-distribution" claim vs SSOT native-video framing).
+
+Run after S26; order adjustable. These edit already-hardened files surgically and are
+hardening-class (commit local, no push).
+
 ## End-of-session ritual (every session — STATE.md handoff baked in)
 
 1. `bash scripts/test-runner.sh` → `Failed: 0` + counts 29/19/25/6.