docs: rewrite README, add CHANGELOG, update skill index and roadmap

- README: complete rewrite with all 24 skills, 8 scripts, architecture overview
- CHANGELOG: v0.1.0 → v0.2.0 → v0.3.0 with full feature history
- using-archeflow: updated skill reference to all 24 skills in 6 categories
- plugin.json: version bump to 0.3.0
- roadmap: updated with v0.3.0 features

CHANGELOG.md

@@ -0,0 +1,71 @@
+# Changelog
+
+All notable changes to ArcheFlow are documented in this file.
+
+## [0.3.0] -- 2026-04-03
+
+### Added
+- Automated PDCA execution loop (`archeflow:run`) with `--start-from` and `--dry-run` support
+- Event-sourced process logging (`archeflow:process-log`) with DAG parent relationships
+- ASCII DAG renderer (`archeflow-dag.sh`) with color output
+- Markdown process report generator (`archeflow-report.sh`) with summary and DAG modes
+- Live progress file (`archeflow:progress`) watchable from a second terminal
+- Domain adapter system (`archeflow:domains`) for writing, research, and custom domains
+- Cost tracking skill (`archeflow:cost-tracking`) with budget enforcement and model tier recommendations
+- Cross-run memory system (`archeflow:memory`) that learns recurring findings and injects lessons
+- Convergence detection (`archeflow:convergence`) to prevent wasted cycles from stalling or oscillation
+- Colette bridge (`archeflow:colette-bridge`) for automatic writing platform integration
+- Template gallery (`archeflow:templates`) with init, save, clone, and list operations
+- Archetype effectiveness scoring (`archeflow:effectiveness`) across signal-to-noise, fix rate, cost efficiency
+- Git-per-phase commit strategy (`archeflow:git-integration`) with branch-per-run and rollback
+- Multi-project orchestration (`archeflow:multi-project`) with dependency DAG and shared budget
+- Act phase skill (`archeflow:act-phase`) for post-Check decision logic and fix routing
+- Artifact routing skill (`archeflow:artifact-routing`) for inter-phase artifact management
+- `archeflow-event.sh` -- structured JSONL event appender
+- `archeflow-git.sh` -- per-phase commits, branch creation, merge, and rollback
+- `archeflow-init.sh` -- template gallery script (init, save, clone, list)
+- `archeflow-memory.sh` -- cross-run memory management (add, list, decay, forget)
+- `archeflow-progress.sh` -- live progress file generator
+- `archeflow-score.sh` -- archetype effectiveness scoring from completed runs
+- Short fiction workflow example (`kurzgeschichte.yaml`) with custom archetypes and Colette integration
+- Story-explorer and story-sage custom archetype examples
+
+## [0.2.0] -- 2026-04-03
+
+### Added
+- Plugin consolidation into single shareable `archeflow/` directory
+- Workflow intelligence with conditional escalation, fast-path, and confidence triggers
+- Quality loop with self-review, convergence detection, dedup, and completion promises
+- Parallel teams with auto-resume and budget scheduling
+- Extensibility: archetype composition, team presets, hook points, workflow templates
+- Mini-reflect fallback for non-ArcheFlow single-file changes (Ralph Loop integration)
+- Comprehensive README with install, usage, debugging, and examples
+- DX improvements: structured confidence, alternatives surfacing
+
+### Fixed
+- Redesigned adaptation rules per Guardian review to resolve race conditions
+- Synced Creator agent definition with orchestration skill expectations
+- Wired hooks correctly and added cost table documentation
+
+## [0.1.0] -- 2026-04-02
+
+### Added
+- Initial release: 7 Jungian archetypes (Explorer, Creator, Maker, Guardian, Skeptic, Trickster, Sage)
+- PDCA orchestration engine with fast, standard, and thorough workflows
+- Shadow detection with quantitative heuristics per archetype
+- Cross-cycle structured feedback with routing and resolution tracking
+- Attention filters for per-archetype context optimization
+- Autonomous mode for unattended overnight sessions
+- Custom archetypes and workflow design skills
+- SessionStart hook for automatic activation
+- `archeflow-dag.sh` and `archeflow-report.sh` process visualization scripts
+
+### Changed
+- Removed ArcheHelix branding, adopted plain PDCA language
+- Trimmed phase skills to reduce token waste
+- Simplified to one shadow per archetype for clearer detection
+
+### Fixed
+- Rewrote SessionStart hook in pure Node for portability (no bash/awk/sed dependencies)
+- Made hook robust with graceful fallbacks (no `set -e`)
+- Corrected repository URLs