feat(okr): sync to v1.3.0 from ktg-privat

Syncs all changes from v1.0.0 through v1.3.0:

v1.1 (quick fixes):
- Fix deprecated Viva Goals references
- Add DFO-OKR terminology mapping
- Add tillitsvalgt/fagforening perspective
- Update Objectives recommendation from 3-5 to 2-3

v1.1 (persistent context):
- Deep onboarding interview (full/mvp)
- Persistent .claude/okr/ directory tree
- Context-aware commands
- Cycle archival with retrospective

v1.3 (AI-first differentiators):
- /okr:gap — tildelingsbrev gap analysis with coverage matrix
- /okr:analyse — cross-cycle Mermaid analytics
- SessionStart coaching hook (proactive, phase-aware)
- gapanalytiker + trendanalytiker agents
- inject-okr-context.mjs extended for historikk/

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/okr/skills/okr-offentlig-sektor/references/meeting-guides.md

@@ -18,7 +18,7 @@
 - Individuelt: Hver person foreslår 1-3 områder for forbedring
 - Gruppe: Samle forslag på whiteboard/Mural
 - Diskuter: Hvilke er viktigst? Hvilke støtter overordnet strategi?
-- Beslutt: Velg 3-5 Objectives
+- Beslutt: Velg 2-3 Objectives
 
 **00:40 - 01:20 | Draft Key Results**
 - For hver Objective: Brainstorm mulige Key Results
@@ -197,7 +197,7 @@ For hvert tema:
 ### Agenda
 
 **00:00 - 00:10 | Status fra hver team**
-- Hvert team presenterer sine 3-5 Objectives (1 slide/5 min)
+- Hvert team presenterer sine 2-3 Objectives (1 slide/5 min)
 
 **00:10 - 00:30 | Identifiser dependencies**
 - Hvilke OKR er avhengige av hverandre?