Reworks the storage + CDC layer to the simplified design agreed in review:
Schema (one clean migration, 0001): projects, sessions, pr, pr_checks,
pr_comment, change_log. sessions.id is a single string key "{project}-{num}"
(mer-1); operational metadata folded into sessions; is_alive replaces the
runtime axis; no revision (the per-session write mutex serializes, change_log.seq
orders). pr keyed by URL (1 session : many PRs). pr_checks is CI run history
(one row per check per commit) — the CI-fix-loop brake is a LIMIT 3 query, no
counter stored. change_log carries a required project_id FK + nullable session_id.
CDC is DB-native: AFTER INSERT/UPDATE triggers on sessions/pr/pr_checks append
to change_log atomically with the change (json_object payloads). The old durable
outbox/JSONL/janitor pipeline is gone; the cdc package is now a Poller that reads
change_log and fans events out through the in-memory Broadcaster (hardened with
recover()). Clients catch up via the log from their own offset (SSE Last-Event-ID).
Storage uses a single writer connection + a reader pool (read-your-writes for the
triggers' subqueries; concurrent reads). sqlc-generated typed queries.
Tests (-race): CRUD, per-project id assignment, the loop-brake query, concurrent
creates, triggers populating change_log; CDC end-to-end through the real store,
concurrent goroutine delivery, broadcaster panic-isolation.
NOTE: scoped to storage + CDC. The lifecycle-engine consumers (decide, lifecycle,
session, reaper, main wiring) still reference the old domain axes and need a
follow-up integration pass to compile against the new model.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add the two real outbound adapters that replace the in-memory fakeStore:
internal/storage/sqlite (persistence satisfying ports.LifecycleStore) and
internal/cdc (transactional-outbox publisher, JSONL delivery, durable
consumer). Wire them into main.go alongside the Lifecycle Manager and reaper
so the write path is live end-to-end: LCM.Upsert -> store -> outbox -> JSONL
-> broadcaster.
Storage (internal/storage/sqlite):
- modernc.org/sqlite (pure Go, no CGO) for clean cross-compile; goose
embedded migrations; sqlc-generated typed queries under gen/.
- Atomic Upsert: session row + change_log + outbox written in one tx.
- revision is an optimistic-concurrency (CAS) check: insert requires
revision 0 and persists 1; update requires loaded revision == stored and
bumps +1; zero rows affected returns a revision-mismatch error.
- Metadata is an opaque map in session_metadata, off the CDC path.
- Durable reaction_trackers (fixes the in-memory-only escalation budget that
re-fired human pages on restart).
CDC (internal/cdc):
- Publisher drains the outbox to a JSONL log; size-based rotation with a
reset marker.
- Consumer tails via byte cursor, detects rotation (os.SameFile), resyncs
from a full-state snapshot on gaps, and tracks a durable consumer_offsets
cursor.
- Janitor reclaims acknowledged outbox rows.
- Broadcaster is the in-process fan-out port the FE transport will subscribe
to (WS/SSE wiring deferred).
Composition root (main.go + *_wiring.go):
- startCDC stands up publisher/consumer/janitor + broadcaster.
- startLifecycle constructs the LCM, makes escalation budgets durable via
WithReactionStore, teaches it to enumerate sessions via WithSessionLister,
and starts the reaper.
- Notifier, AgentMessenger, and the reaper's runtime registry are TEMPORARY
no-op/empty stubs (lifecycle_wiring.go) with TODO markers; see the PR
description for how to fill them in.
Tests: contract-parity, revision CAS, outbox atomicity, CDC ordering and
idempotency, rotation/resync, janitor vacuum, reaction durability across a
simulated restart, and composition-root adapters. gofmt/build/vet clean and
go test -race ./... green.
prateek
Pritom14