Implementation Plan: [FEATURE]

Branch: [###-feature-name] | Date: [DATE] | Spec: [link] Input: Feature specification from /specs/[###-feature-name]/spec.md

Note: This template is filled in by the /speckit.plan command. See .specify/templates/commands/plan.md for the execution workflow.

Summary

[Extract from feature spec: primary requirement + technical approach from research]

Technical Context

Language/Version: [e.g., Python 3.11, Swift 5.9, Rust 1.75 or NEEDS CLARIFICATION]
Primary Dependencies: [e.g., FastAPI, UIKit, LLVM or NEEDS CLARIFICATION]
Storage: [if applicable, e.g., PostgreSQL, CoreData, files or N/A]
Testing: [e.g., pytest, XCTest, cargo test or NEEDS CLARIFICATION]
Target Platform: [e.g., Linux server, iOS 15+, WASM or NEEDS CLARIFICATION] Project Type: [single/web/mobile - determines source structure]
Performance Goals: [domain-specific, e.g., 1000 req/s, 10k lines/sec, 60 fps or NEEDS CLARIFICATION]
Constraints: [domain-specific, e.g., <200ms p95, <100MB memory, offline-capable or NEEDS CLARIFICATION]
Scale/Scope: [domain-specific, e.g., 10k users, 1M LOC, 50 screens or NEEDS CLARIFICATION]

Constitution Check

GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.

Tech Stack Adherence:

Feature uses Fiber + GORM + Viper + Zap + Lumberjack.v2 + Validator + sonic JSON + Asynq + PostgreSQL
No native calls bypass framework (no database/sql, net/http, encoding/json direct use)
All HTTP operations use Fiber framework
All database operations use GORM
All async tasks use Asynq

Code Quality Standards:

Follows Handler → Service → Store → Model architecture
Handler layer only handles HTTP, no business logic
Service layer contains business logic with cross-module support
Store layer manages all data access with transaction support
Uses dependency injection via Service/Store structs
Unified error codes in pkg/errors/
Unified API responses via pkg/response/

Testing Standards:

Unit tests for all core business logic (Service layer)
Integration tests for all API endpoints
Tests use Go standard testing framework
Tests are independent (no external service dependencies)
Target coverage: 70%+ overall, 90%+ for core business

User Experience Consistency:

All APIs use unified JSON response format
Error responses include clear error codes and bilingual messages
RESTful design principles followed
Unified pagination parameters (page, page_size, total)
Time fields use ISO 8601 format (RFC3339)
Currency amounts use integers (cents) to avoid float precision issues

Performance Requirements:

API response time (P95) < 200ms, (P99) < 500ms
Batch operations use bulk queries/inserts
All database queries have appropriate indexes
List queries implement pagination (default 20, max 100)
Non-realtime operations use async tasks
Database and Redis connection pools properly configured

Project Structure

Documentation (this feature)

specs/[###-feature]/
├── plan.md              # This file (/speckit.plan command output)
├── research.md          # Phase 0 output (/speckit.plan command)
├── data-model.md        # Phase 1 output (/speckit.plan command)
├── quickstart.md        # Phase 1 output (/speckit.plan command)
├── contracts/           # Phase 1 output (/speckit.plan command)
└── tasks.md             # Phase 2 output (/speckit.tasks command - NOT created by /speckit.plan)

Source Code (repository root)

# [REMOVE IF UNUSED] Option 1: Single project (DEFAULT)
src/
├── models/
├── services/
├── cli/
└── lib/

tests/
├── contract/
├── integration/
└── unit/

# [REMOVE IF UNUSED] Option 2: Web application (when "frontend" + "backend" detected)
backend/
├── src/
│   ├── models/
│   ├── services/
│   └── api/
└── tests/

frontend/
├── src/
│   ├── components/
│   ├── pages/
│   └── services/
└── tests/

# [REMOVE IF UNUSED] Option 3: Mobile + API (when "iOS/Android" detected)
api/
└── [same as backend above]

ios/ or android/
└── [platform-specific structure: feature modules, UI flows, platform tests]

Structure Decision: [Document the selected structure and reference the real directories captured above]

Complexity Tracking

Fill ONLY if Constitution Check has violations that must be justified

Violation	Why Needed	Simpler Alternative Rejected Because
[e.g., 4th project]	[current need]	[why 3 projects insufficient]
[e.g., Repository pattern]	[specific problem]	[why direct DB access insufficient]

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