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stefan 83954dfbba Standardize documentation with headers and archive old files

Applied a unified header format to all documentation files for better status identification, referencing, and ownership tracking. Archived outdated roadmaps, reports, and journal entries. Updated playbooks with new responsibilities, lifecycle rules, and consistent handover formats to align with the new archiving strategy.

2026-01-16 13:20:36 +01:00

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Session Log

2026-01-15

Senior Backend Developer

User

Backend Infrastructure Analysis & Ping Service Hardening

BLOCKED

Session Log: Backend Infrastructure Analysis

1. Context

The goal was to start "Phase 1: Backend Hardening" for the ping-service as defined in the Master Roadmap. The Senior Backend Developer began analyzing the existing infrastructure to ensure a solid foundation before implementing security and resilience features.

2. Key Findings & Analysis

A deep dive into backend/infrastructure revealed significant inconsistencies:

Persistence Conflict (Blocker):
- ping-service is configured for JPA/Hibernate (spring-boot-starter-data-jpa).
- The shared library backend/infrastructure/persistence (specifically DatabaseUtils.kt) is built exclusively for Exposed (Kotlin SQL Framework).
- This creates a "split-brain" situation regarding ORM strategy.
Missing Security Infrastructure:
- No shared security module exists (backend/infrastructure/security).
- Implementing OAuth2/RBAC directly in ping-service would violate DRY principles.
Messaging Overhead:
- backend/infrastructure/messaging includes heavy Kafka dependencies.
- It is unclear if the "Tracer Bullet" (Ping Service) requires Kafka or if a simple REST-based Delta-Sync is sufficient.

3. Actions Taken

Analyzed build.gradle.kts of ping-service and infrastructure modules.
Identified the blocking architectural questions.
Created Pending ADR: docs/01_Architecture/adr/000-PENDING-backend-infrastructure-decisions.md containing a catalog of questions for the Lead Architect.

4. Next Steps

WAITING FOR: Lead Architect to resolve the JPA vs. Exposed decision.
WAITING FOR: Decision on extracting a shared security module.
Once decisions are made, the Backend Developer will proceed with:
1. Refactoring persistence (either removing JPA or rewriting infrastructure).
2. Implementing the Security Hardening.

5. Artifacts Created

docs/01_Architecture/adr/000-PENDING-backend-infrastructure-decisions.md

Logged by: Documentation & Knowledge Curator (Proxy)

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