---
gsd_state_version: 1.0
milestone: v1.0
milestone_name: milestone
status: in-progress
stopped_at: Completed 02-01-PLAN.md
last_updated: "2026-03-11T15:15:47Z"
last_activity: 2026-03-11 -- Completed 02-01 (Schema extension, core domain types, ingestion updates)
progress:
  total_phases: 4
  completed_phases: 1
  total_plans: 3
  completed_plans: 1
  percent: 33
---

# Project State

## Project Reference

See: .planning/PROJECT.md (updated 2026-03-11)

**Core value:** Users can reliably search and find any transaction across all connected Camel instances -- by any combination of state, time, duration, or content -- even at millions of transactions per day with 30-day retention.
**Current focus:** Phase 2: Transaction Search + Diagrams

## Current Position

Phase: 2 of 4 (Transaction Search + Diagrams)
Plan: 2 of 3 in current phase
Status: Plan 02-02 Complete
Last activity: 2026-03-11 -- Completed 02-02 (ELK diagram rendering, SVG/JSON content negotiation, 15 tests)

Progress: [██████----] 67%

## Performance Metrics

**Velocity:**
- Total plans completed: 0
- Average duration: -
- Total execution time: 0 hours

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| - | - | - | - |

**Recent Trend:**
- Last 5 plans: -
- Trend: -

*Updated after each plan completion*
| Phase 01 P01 | 3min | 2 tasks | 13 files |
| Phase 01 P02 | 7min | 2 tasks | 14 files |
| Phase 01 P03 | 10min | 2 tasks | 12 files |
| Phase 02 P01 | 13min | 2 tasks | 15 files |
| Phase 02 P02 | 14min | 2 tasks | 10 files |

## Accumulated Context

### Decisions

Decisions are logged in PROJECT.md Key Decisions table.
Recent decisions affecting current work:

- [Roadmap]: ClickHouse chosen as primary store (research recommendation, HIGH confidence)
- [Roadmap]: Full-text search starts with ClickHouse skip indexes (tokenbf_v1), OpenSearch deferred
- [Roadmap]: Phases 2 and 3 can execute in parallel (both depend only on Phase 1)
- [Roadmap]: Web UI deferred to v2
- [Phase 01]: Used spring-boot-starter-jdbc for JdbcTemplate + HikariCP auto-config
- [Phase 01]: Created MetricsSnapshot record in core module (cameleer3-common has no metrics model)
- [Phase 01]: Upgraded testcontainers to 2.0.3 for Docker Desktop 29.x compatibility
- [Phase 01]: Changed error_message/error_stacktrace to non-nullable String for tokenbf_v1 index compat
- [Phase 01]: TTL expressions require toDateTime() cast for DateTime64 columns in ClickHouse 25.3
- [Phase 01]: Controllers accept raw String body to support both single and array JSON payloads
- [Phase 01]: IngestionService is a plain class in core module, wired as bean by IngestionBeanConfig in app
- [Phase 01]: Removed @Configuration from IngestionConfig to fix duplicate bean with @EnableConfigurationProperties
- [Phase 02]: FlatProcessor record captures depth and parentIndex during DFS traversal
- [Phase 02]: Exchange bodies/headers concatenated into single String columns for LIKE search
- [Phase 02]: Headers serialized to JSON via Jackson ObjectMapper (static instance)
- [Phase 02]: DiagramRenderer/DiagramLayout stubs created to resolve pre-existing compilation blocker
- [Phase 02]: ELK layered algorithm with top-to-bottom direction for route diagram layout
- [Phase 02]: JFreeSVG over Batik for lightweight server-side SVG generation
- [Phase 02]: Manual Accept header parsing -- JSON only when first preference, SVG as default
- [Phase 02]: xtext xbase lib required at runtime by ELK 0.11.0 LayeredMetaDataProvider
- [Phase 02]: Compound node children detected from RouteNode.getChildren() (matches agent graph model)

### Pending Todos

None yet.

### Blockers/Concerns

- [Phase 1]: ClickHouse Java client API needs phase-specific research (library has undergone changes)
- [Phase 1]: Must read cameleer3-common PROTOCOL.md before designing ClickHouse schema
- [Phase 2]: Diagram rendering library selection is an open question (Batik, jsvg, JGraphX, or client-side)
- [Phase 2]: ClickHouse skip indexes may not suffice for full-text; decision point during Phase 2

## Session Continuity

Last session: 2026-03-11T15:17:22Z
Stopped at: Completed 02-02-PLAN.md
Resume file: .planning/phases/02-transaction-search-diagrams/02-02-SUMMARY.md