Restore TODO.md and move TODO content out of README (#58)

Reviewed-on: #58
Co-authored-by: sneak <sneak@sneak.berlin>
Co-committed-by: sneak <sneak@sneak.berlin>

README.md

@@ -893,95 +893,7 @@ linted, tested, and compiled.
 
 ## TODO
 
-### Completed: Code Quality (Phase 1 of MVP)
+See [TODO.md](TODO.md).
-- [x] Rename Processor → Webhook, Webhook → Entrypoint in code
-      ([#12](https://git.eeqj.de/sneak/webhooker/issues/12))
-- [x] Embed templates via `//go:embed`
-      ([#7](https://git.eeqj.de/sneak/webhooker/issues/7))
-- [x] Use `slog.LevelVar` for dynamic log level switching
-      ([#8](https://git.eeqj.de/sneak/webhooker/issues/8))
-- [x] Simplify configuration to prefer environment variables
-      ([#10](https://git.eeqj.de/sneak/webhooker/issues/10))
-- [x] Remove redundant `godotenv/autoload` import
-      ([#11](https://git.eeqj.de/sneak/webhooker/issues/11))
-- [x] Implement authentication middleware for protected routes
-      ([#9](https://git.eeqj.de/sneak/webhooker/issues/9))
-- [x] Replace Bootstrap with Tailwind CSS + Alpine.js
-      ([#4](https://git.eeqj.de/sneak/webhooker/issues/4))
-
-### Completed: Core Webhook Engine (Phase 2 of MVP)
-- [x] Implement webhook reception and event storage at `/webhook/{uuid}`
-- [x] Build event processing and target delivery engine
-- [x] Implement HTTP target type (fire-and-forget with max_retries=0,
-      retries with exponential backoff when max_retries>0)
-- [x] Implement database target type (store events in per-webhook DB)
-- [x] Implement log target type (console output)
-- [x] Implement Slack target type (Slack/Mattermost incoming webhook
-      notifications with pretty-printed payloads)
-- [x] Webhook management pages (list, create, edit, delete)
-- [x] Webhook request log viewer with pagination
-- [x] Entrypoint and target management UI
-
-### Completed: Per-Webhook Event Databases
-- [x] Split into main application DB + per-webhook event DBs
-- [x] Per-webhook database lifecycle management (create on webhook
-      creation, delete on webhook removal)
-- [x] `WebhookDBManager` component with lazy connection pooling
-- [x] Event-driven delivery engine (channel notifications + timer-based retries)
-- [x] Self-contained delivery tasks: in the ≤16KB happy path, the engine
-      delivers without reading from any database — target config, event
-      headers, and body are all carried inline in the channel notification.
-      The engine only touches the DB to record results (success/failure).
-      Large bodies (≥16KB) are fetched from the per-webhook DB on demand.
-- [x] Database target type marks delivery as immediately successful
-      (events are already in the per-webhook DB)
-- [x] Parallel fan-out: all targets for an event are delivered via
-      the bounded worker pool (no goroutine-per-target)
-- [x] Circuit breaker for HTTP targets with retries: tracks consecutive
-      failures per target, opens after 5 failures (30s cooldown),
-      half-open probe to test recovery
-
-### Completed: Security Hardening
-- [x] Security headers middleware (HSTS, CSP, X-Frame-Options,
-      X-Content-Type-Options, Referrer-Policy, Permissions-Policy)
-      ([#34](https://git.eeqj.de/sneak/webhooker/issues/34))
-- [x] Session regeneration on login to prevent session fixation
-      ([#38](https://git.eeqj.de/sneak/webhooker/issues/38))
-- [x] Request body size limits on form endpoints
-      ([#39](https://git.eeqj.de/sneak/webhooker/issues/39))
-
-### Remaining: Core Features
-- [ ] Per-webhook rate limiting in the receiver handler
-- [ ] Webhook signature verification (GitHub, Stripe formats)
-- [x] CSRF protection for forms
-      ([#35](https://git.eeqj.de/sneak/webhooker/issues/35))
-- [x] SSRF prevention for HTTP delivery targets
-      ([#36](https://git.eeqj.de/sneak/webhooker/issues/36))
-- [x] Login rate limiting (per-IP brute-force protection)
-      ([#37](https://git.eeqj.de/sneak/webhooker/issues/37))
-- [ ] Session expiration and "remember me"
-- [ ] Password change/reset flow
-- [ ] API key authentication for programmatic access
-- [ ] Manual event redelivery
-- [ ] Analytics dashboard (success rates, response times)
-- [ ] Delivery status and retry management UI
-
-### Remaining: Event Maintenance
-- [ ] Automatic event retention cleanup based on `retention_days`
-
-### Remaining: REST API
-- [ ] RESTful CRUD for webhooks, entrypoints, targets
-- [ ] Event viewing and filtering endpoints
-- [ ] Event redelivery endpoint
-- [ ] OpenAPI specification
-
-### Future
-- [ ] Email delivery target type
-- [ ] SNS, S3, Slack delivery targets
-- [ ] Data transformations (e.g., webhook-to-Slack message formatting)
-- [ ] JSONL file delivery with periodic S3 upload
-- [ ] Webhook event search and filtering
-- [ ] Multi-user with role-based access
 
 ## License
 

TODO.md

@@ -0,0 +1,75 @@
+# Workflow
+
+* branch (from `main`)
+* do the work in Next Step
+* move Next Step to the top of Completed Steps
+* move the top item of Future Steps into Next Step
+* commit (`TODO.md` changes in the same commit as the work)
+* merge to `main` if the branch is not protected, otherwise open a PR
+* push
+
+# Status
+
+pre-1.0. No git tags exist. main (afe88c6) is a working webhook proxy
+with auth, CSRF/SSRF protections, login rate limiting, Slack target,
+policy compliance (#6), and pinned lint tooling (#55). Note: TODO.md was
+deliberately deleted from this repo in f9a9569 (2026-03-01, #6); its
+content was folded into the README TODO section, which this draft
+reconstructs as of 2026-07-06.
+
+# Next Step
+
+Implement automatic event retention cleanup based on retention_days: a
+periodic maintenance job that deletes Events, Deliveries, and
+DeliveryResults older than the parent webhook's retention_days from each
+per-webhook event database. The field exists on the Webhook model and
+the README promises the behavior, but nothing enforces it, so event
+databases currently grow without bound.
+
+# Completed Steps
+
+- 2026-03-25 pin golangci-lint Docker image for linting (#55)
+- 2026-03-18 CSRF middleware detects TLS per-request, fixing login over
+  plain HTTP and behind reverse proxies (#54)
+- 2026-03-17 root path redirects based on auth state (#52)
+- 2026-03-17 CSRF protection, SSRF prevention for HTTP delivery targets
+  with DNS rebinding defense, and per-IP login rate limiting (#42)
+- 2026-03-17 Slack target type for incoming webhook notifications (#47)
+- 2026-03-17 Dockerfile absolute paths and static linking (#49);
+  absolute dev DATA_DIR default and clarified env docs (#46)
+- 2026-03-05 security headers middleware, session regeneration on
+  login, request body size limits (#41)
+- 2026-03-04 tests for delivery, middleware, and session packages
+  (#32); removed globals.Buildarch (#31)
+- 2026-03-04 1.0 MVP merge: Webhook/Entrypoint/Target rename, core
+  delivery engine with bounded worker pool and circuit breaker,
+  parallel fan-out, per-webhook event databases, management UI (#16)
+- 2026-03-01 repo brought to REPO_POLICIES standards; TODO.md folded
+  into README (#6)
+
+# Future Steps
+
+- Manual event redelivery from the web UI (replay is a core promised
+  capability in the README rationale)
+- Delivery status and retry management UI
+- Per-webhook rate limiting in the receiver handler (per-webhook config
+  plus handler enforcement; global limits must not apply to receiver
+  endpoints)
+- Webhook signature verification for GitHub and Stripe HMAC formats
+- API key authentication for programmatic access (APIKey model exists;
+  Bearer token middleware does not)
+- REST API v1
+    - CRUD for webhooks, entrypoints, targets
+    - event viewing and filtering endpoints
+    - event redelivery endpoint
+    - OpenAPI specification
+- Analytics dashboard: success rates, response times, volume
+- Session expiration tuning and a remember-me option
+- Password change and reset flow
+- Later, nice to have
+    - email delivery target type
+    - SNS and S3 delivery targets
+    - data transformations (e.g. webhook to Slack message formatting)
+    - JSONL file delivery with periodic S3 upload
+    - webhook event search and filtering
+    - multi-user with role-based access control