docs: add DAILY-FLOW and PHASE-FLOW documentation

INITIAL-3.md

@@ -20,6 +20,11 @@
 - FastAPI request models + validation patterns
 - Postgres upsert (ON CONFLICT) + uniqueness constraints
 
+## KEY RESOLUTION
+- Ingest payloads accept natural keys (`store_code`, `sku`) instead of internal IDs.
+- Service resolves codes → IDs before upsert.
+- Unknown codes: reject individual row with error detail; continue processing valid rows.
+
 ## OTHER CONSIDERATIONS:
 - Logging: inserted/updated counts + dedupe stats.
 - Batch sizing/timeouts must be configurable.

docs/DAILY-FLOW.md

@@ -0,0 +1,175 @@
+# Daily Development Flow
+
+A napi fejlesztési munkafolyamat a ForecastLabAI projekthez.
+
+---
+
+## Branch Stratégia
+
+```
+main (protected)     <- Production releases only
+  │
+  └── dev            <- Integration branch
+        │
+        └── feat/*   <- Feature branches
+```
+
+---
+
+## Napi Fejlesztési Ciklus
+
+### 1. Munka Kezdése
+
+```bash
+# Frissítsd a dev branchet
+git checkout dev
+git pull origin dev
+
+# Hozz létre feature branchet
+git checkout -b feat/prp-X-feature-name
+```
+
+### 2. Fejlesztés Közben
+
+```bash
+# Rendszeres commitok
+git add <files>
+git commit -m "feat(module): description"
+
+# Lokális ellenőrzések
+uv run ruff check .
+uv run ruff format .
+uv run mypy app/
+uv run pyright app/
+uv run pytest -v
+```
+
+### 3. PR Létrehozása
+
+```bash
+# Push feature branch
+git push origin feat/prp-X-feature-name
+
+# PR létrehozása dev-be
+gh pr create --base dev --title "feat(module): description" --body "..."
+```
+
+### 4. CI Ellenőrzések
+
+A PR-nek át kell mennie:
+- [ ] Lint & Format
+- [ ] Type Check (MyPy + Pyright)
+- [ ] Test
+- [ ] Migration Check
+- [ ] Code Review (Sourcery, CodeRabbit)
+
+### 5. Merge to Dev
+
+```bash
+# Review után merge
+gh pr merge <PR_NUMBER> --squash --delete-branch
+```
+
+---
+
+## Dev → Main Merge (Feature Complete)
+
+Amikor egy feature teljesen kész:
+
+```bash
+# Checkout dev
+git checkout dev
+git pull origin dev
+
+# PR létrehozása main-be
+gh pr create --base main --head dev --title "feat(module): merge feature to main"
+
+# CI ellenőrzések után merge
+gh pr merge <PR_NUMBER> --squash
+```
+
+---
+
+## Release Flow
+
+A `main` branch-re történő merge után a `release-please` automatikusan:
+1. Létrehoz egy Release PR-t (version bump + CHANGELOG)
+2. CI lefut a Release PR-en
+3. Merge után GitHub Release + tag jön létre
+
+```bash
+# Release PR ellenőrzése
+gh pr list --label "autorelease: pending"
+
+# CI trigger ha szükséges
+git checkout <release-branch>
+git commit --allow-empty -m "chore: trigger CI"
+git push
+
+# Merge release PR
+gh pr merge <PR_NUMBER> --squash --delete-branch
+```
+
+---
+
+## Commit Message Konvenció
+
+```
+<type>(<scope>): <description>
+
+Types:
+- feat:     Új feature
+- fix:      Bug fix
+- docs:     Dokumentáció
+- refactor: Refaktorálás
+- test:     Teszt hozzáadás/módosítás
+- chore:    Build, CI, dependencies
+
+Scope (opcionális):
+- data-platform
+- ingest
+- forecasting
+- backtesting
+- registry
+- rag
+- dashboard
+```
+
+---
+
+## Gyors Parancsok
+
+```bash
+# Status check
+git status && git log --oneline -5
+
+# Lint + format
+uv run ruff check --fix . && uv run ruff format .
+
+# Type check
+uv run mypy app/ && uv run pyright app/
+
+# Tesztek
+uv run pytest -v
+uv run pytest -v -m integration  # DB szükséges
+
+# PR checks
+gh pr checks <PR_NUMBER>
+
+# Watch workflow
+gh run watch <RUN_ID>
+```
+
+---
+
+## Következő Phase: Ingest Layer (PRP-3)
+
+```bash
+# Kezdés
+git checkout dev
+git pull origin dev
+git checkout -b feat/prp-3-ingest-layer
+
+# Fejlesztés...
+# PR → dev → main → release → phase-2 snapshot
+```