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/CHANGELOG.md

@@ -5,6 +5,19 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.0] - 2026-04-08
+
+### Added
+- **Command /okr:gap**: Automatic gap analysis between tildelingsbrev requirements and current OKR with coverage matrix
+- **Command /okr:analyse**: Cross-cycle analytics with Mermaid trend visualizations (score trends, antipattern frequency, alignment)
+- **Agent gapanalytiker**: Sonnet agent for tildelingsbrev coverage analysis
+- **Agent trendanalytiker**: Sonnet agent for cross-cycle pattern analysis with Mermaid output
+- **Hook SessionStart**: Proactive coaching based on cycle timeline position, at-risk KR detection, and previous cycle learnings
+- **Hook extension**: inject-okr-context.mjs now reports archived cycle count from historikk/
+
+### Changed
+- Version bumped from 1.1.0 to 1.3.0
+
 ## [1.0.0] - 2026-04-08
 
 ### Changed