Initial import of AbelBirdNest Stock

docs/project-spec/walet-sprint-breakdown.md

@@ -0,0 +1,281 @@
+# Task Breakdown Per Sprint Sistem Inventory Walet
+
+## Asumsi
+- Sprint 2 minggu
+- Tim kecil sampai menengah
+- Fokus awal ke fondasi backend + frontend operasional inti
+- Target awal: MVP usable untuk pembelian, receiving, stok lot, dan penjualan sederhana
+
+## Sprint 0 - Foundation Setup
+### Backend
+- setup project structure
+- setup database PostgreSQL
+- implement auth dasar
+- implement migration system
+- import schema awal
+
+### Frontend
+- setup Next.js + TypeScript
+- setup UI base, app shell, routing
+- setup TanStack Query, form library, state management
+
+### DevOps
+- environment dev/staging
+- seed data awal
+- lint, formatting, pre-commit
+
+### Deliverables
+- repo siap kerja
+- database hidup
+- login dasar
+- layout aplikasi hidup
+
+---
+
+## Sprint 1 - Master Data Core
+### Backend
+- API suppliers
+- API customers
+- API item types
+- API item grades
+- API warehouses dan locations
+- API adjustment reasons
+
+### Frontend
+- halaman list/create/edit master data
+- reusable form dan table
+
+### QA
+- validasi CRUD master data
+
+### Deliverables
+- semua master data inti bisa dikelola
+
+---
+
+## Sprint 2 - Purchasing
+### Backend
+- API purchases
+- API purchase lines
+- status workflow draft/submitted/cancelled
+- histori harga beli dasar
+
+### Frontend
+- purchase list
+- purchase form multi-line
+- purchase detail
+
+### QA
+- test multi-line purchase
+- test status pembelian
+
+### Deliverables
+- user bisa membuat pembelian multi jenis-grade
+
+---
+
+## Sprint 3 - Receiving dan Lot Creation
+### Backend
+- API receipts
+- API receipt lines
+- generate inventory lots
+- movement ledger untuk receiving
+- print label metadata
+
+### Frontend
+- receipt form
+- receipt detail
+- generate lot action
+- lot list dasar
+
+### QA
+- test qty ordered vs received
+- test lot terbentuk benar
+
+### Deliverables
+- barang bisa diterima dan jadi lot
+
+---
+
+## Sprint 4 - Inventory Lot Management
+### Backend
+- API lot detail
+- API lot movement history
+- API hold/release
+- API transfer lot
+- stock summary endpoint
+
+### Frontend
+- stock summary page
+- stock lot list
+- lot detail
+- transfer/hold action
+
+### QA
+- test trace lot dasar
+- test lot status
+
+### Deliverables
+- user bisa melihat dan mengelola lot
+
+---
+
+## Sprint 5 - Sales dan Allocation
+### Backend
+- API sales
+- API sales lines
+- API manual allocation
+- API auto allocation FIFO
+- costing by allocation
+- movement ledger untuk sales out
+
+### Frontend
+- sales form
+- allocation screen
+- sales detail
+- costing preview
+
+### QA
+- test sales dari satu lot
+- test sales dari banyak lot
+- test costing total
+
+### Deliverables
+- penjualan campuran dari beberapa lot berjalan
+
+---
+
+## Sprint 6 - Picking dan Barcode Lookup
+### Backend
+- API confirm picking
+- API barcode lookup
+- API print/reprint label
+
+### Frontend
+- picking screen
+- QR lookup page
+- scan-to-lot workflow
+
+### QA
+- test scan lot
+- test picking actual qty
+
+### Deliverables
+- gudang bisa picking pakai scan
+
+---
+
+## Sprint 7 - Sorting, Regrade, Shrinkage
+### Backend
+- API sorting session
+- API sorting results
+- parent-child lot relation
+- API regrade
+- API stock adjustment/shrinkage
+
+### Frontend
+- sorting session form
+- regrade form
+- adjustment form
+- movement timeline update
+
+### QA
+- test lot pecah jadi child lots
+- test shrinkage
+- test regrade
+
+### Deliverables
+- sortasi dan regrade operasional berjalan
+
+---
+
+## Sprint 8 - Returns dan Traceability
+### Backend
+- API sales returns
+- API purchase returns
+- traceability report endpoint
+- forward trace dan backward trace
+
+### Frontend
+- return pages
+- traceability report page
+- lot usage per sales
+- sales source per lot
+
+### QA
+- test trace dari sales ke supplier
+- test trace dari supplier ke customer
+
+### Deliverables
+- audit traceability end-to-end hidup
+
+---
+
+## Sprint 9 - Reporting dan Hardening
+### Backend
+- reports stock summary
+- stock lots
+- purchases
+- sales
+- margins
+- shrinkage
+- supplier quality
+
+### Frontend
+- report pages
+- export actions
+- dashboard refinement
+
+### QA
+- performance testing
+- data consistency testing
+- permission testing
+
+### Deliverables
+- MVP lengkap dan siap UAT
+
+---
+
+## Sprint 10 - UAT & Stabilization
+### Fokus
+- bug fixing
+- UX refinement
+- validasi flow riil user
+- tuning laporan dan filter
+- training material awal
+
+### Deliverables
+- versi siap pilot
+
+---
+
+## Jalur MVP paling ringkas kalau mau dipercepat
+Kalau Pak Wira ingin versi lebih cepat, bisa ambil jalur:
+1. Sprint 0
+2. Sprint 1
+3. Sprint 2
+4. Sprint 3
+5. Sprint 4
+6. Sprint 5
+
+Artinya MVP cepat sudah mencakup:
+- master data
+- purchase
+- receipt
+- lot inventory
+- stock summary
+- sales allocation
+- costing dasar
+
+Sortasi, regrade, return, dan trace report advanced bisa menyusul.
+
+## Rekomendasi prioritas tertinggi
+Kalau tim terbatas, jangan mulai dari laporan dulu. Prioritas paling penting:
+1. lot model benar
+2. movement ledger benar
+3. sales allocation benar
+4. costing benar
+5. baru reporting dan polish
+
+## Kesimpulan
+Task breakdown ini dibuat supaya tim bisa membangun sistem walet secara bertahap tanpa kehilangan fondasi. Pusat keberhasilan ada pada lot, allocation, movement ledger, dan traceability.