Changelog Summary

Overview

The changelog covers four days of intensive development, from initial planning on February 24 through MVP completion and post-MVP polish on February 27. The entire platform -- backend, frontend, data migration, tests -- was built in this compressed timeline.

Timeline

2026-02-24: Project Planning and Documentation

• Created comprehensive PRD (3,183 lines, 18 sections + 2 appendices)
• Created System Diagram V1 (4-layer architecture, 6 entities, 8 actions)
• Documented meeting transcripts in audio/
• Created Memory Bank structure with 7 context files
• Created three specialized agents: architect, frontend, backend
• Created CLAUDE.md as project intelligence root

2026-02-25: Backend Scaffold and Phase 0 Start

• Created Django 6.0.2 project at backend/ with split settings (base, dev, testing, prod)
• Set up PostgreSQL database with uuid-ossp extension
• Created 9 Django apps (accounts, buyers, containers, ingestion, matching, mills, newsletters, surplus, transactions)
• Created common models (TimestampedModel), enums (23 TextChoices), pagination
• Created config directory (celery, urls, wsgi, asgi)
• Created test infrastructure and seed data fixtures
• Created Development Checklist (~470 tasks + ~586 test cases)
• ~25 new files across backend

2026-02-26: Phases 1-13 Completed + Data Migration

This was the big build day. All development phases completed in rapid succession:

• Phase 0: Data models -- 13 models, migrations, 131 tests, seed data
• Phase 1: REST API -- 69 endpoints, roles, permissions, Swagger docs
• Phase 1b: Excel ingestion pipeline -- file processing, parsing, validation, Celery tasks
• Phase 2: Data bootstrap -- import_buyers, import_mills, derive_specs, derive_products
• Phase 3: Matching algorithm -- 5 scoring functions, composite, auto-triggers
• Phase 4: Geographic visibility -- scope hierarchy, price adjustments
• Phase 5: Newsletter generation -- per-buyer, visibility-filtered, tracking, bounce handling
• Phase 6: Container assembly -- bin-packing, freight estimation, proposal lifecycle
• Phase 7: Exclusivity mechanism -- 48-hour windows, max 3 grants
• Phase 8: Pre-production -- auto-transition, express interest
• Phase 9: API tests -- role change, visibility rules, re-matching triggers
• Phase 10: Admin dashboard views
• Phase 11: Security -- audit logging, file validators, RBAC, 29 tests
• Phase 12: Acceptance testing -- 4 integration tests, 16 benchmarks
• Phase 13: Angular frontend -- 80+ components, JWT auth, deployed at /mvp/app/

Also completed:

• MorichalAI data migration: 1,714 records imported via 11-module import service, 119 new tests
• Transaction UI polish: status timeline, action buttons, navigation fixes
• Quick fixes: Celery worker+beat via PM2, seed accounts

2026-02-27: Container Visualization Improvements

• Created container-mini.component.ts -- compact 3D isometric SVGs for browse cards
• Updated surplus-card.component.ts -- replaced progress bars with 3D container shapes, added "Request Quote" CTA
• Updated container-svg.component.ts -- larger text, configurable legend
• Updated product-detail.component.ts -- replaced static Container Fit card with interactive reel-container-widget
• Created reel-container-widget.component.ts -- interactive calculator
• 5 files total (2 created, 3 modified)

Sources

• raw/articles/CHANGELOG -- full changelog with file-level detail

Related

• wiki/summaries/progress-summary -- the task tracker that parallels this timeline
• wiki/summaries/status-summary -- current project health
• wiki/concepts/phases-0-to-13-recap -- narrative summary of each phase
• wiki/entities/morichal-ai -- the data migration mentioned in Feb 26 entries
• wiki/summaries/discoveries-summary -- architecture decisions made during this build