docs: clean up TODO and DONE, updating BACKLOG

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> All current work is planned in [TODO](./TODO.md) (2026-08-13). This file lists backlog items; new unplanned work is added here.
## Chat improvements (remaining)
- [ ] Manual smoke: viewer join/leave shows a 3s flash (not a chat row); reconnect <5s shows no duplicate; admin chat-log table has no system rows
## Playout improvements (remaining)
- [ ] Test in Firefox: live playback, rebuffer/recovery, chat sync; record quirks in `docs/STREAMING.md`
- [ ] Rebuild + run playout; confirm `playlist.m3u8` lists ~12 segments at 2s each
- [ ] Manual: verify viewer latency and cache-hit behavior after the change
## Setup phases remaining
### Phase 5: complete manual Cloudflare and external-service setup
- [ ] Apply Cloudflare Pages, Tiered Cache, WAF, rate limiting, and HTTPS/HSTS settings in the dashboard
- [ ] Cloudflare Pages: link custom domain and cut over frontend hosting
- [ ] Enable Smart Tiered Cache; validate `Cf-Cache-Status: HIT` from upper tier
- [ ] WAF: enable OWASP Managed Ruleset (Simulate → review 48h → Block), enable Bot Fight Mode
- [ ] Rate limiting: `/api/admin/login` + `/api/admin/*` → 10 req/10s per IP, Challenge action
- [ ] HTTPS/WSS: Always Use HTTPS, HSTS max-age=31536000 includeSubDomains preload, min TLS 1.2; enforce at edge and origin
- [ ] UptimeRobot: add HTTP monitor for `https://linearvoid.tv/health` (5min interval)
- [ ] UptimeRobot: add keyword monitor for `https://linearvoid.tv/hls/playlist.m3u8` (keyword `#EXTM3U`, 5min)
- [ ] UptimeRobot: alert on 2 consecutive failures via email + Discord/Slack webhook
- [ ] Capture evidence in `docs/operations/cloudflare-uptimerobot-checklist.md`
### Phase 6: rehearse production deployment end to end
- [ ] Provision Hetzner CX22 (2 vCPU, 4 GB, 40 GB) in Ashburn VA, Ubuntu 24.04
- [ ] Install Docker Engine + Compose plugin; open firewall: 80/443 public, 2375 runner-only
- [ ] Configure Docker daemon for remote TLS access (`-H tcp://0.0.0.0:2376` with certs)
- [ ] Create `/srv/linearvoid/data/{playlist,media,hls,chat,slate}` directories
- [ ] Add `CI_PROD_*` secrets to Gitea (DOCKER_HOST, R2 keys, admin password, DB password, Grafana password)
- [ ] Trigger CD workflow with `DOCKER_HOST` pointing to Hetzner IP
- [ ] Verify all 11 containers healthy: `/health`, `/hls/playlist.m3u8`, WebSocket
- [ ] Update Cloudflare A record `linearvoid.tv` → Hetzner IP, SSL Full (strict); test HTTPS + WSS
- [ ] Smoke test: viewer SPA loads, HLS plays, chat connects, admin login → upload → playlist → playout
- [ ] Set up Prometheus alerting notifications + UptimeRobot on production URL
- [ ] Run `scripts/backup-db.sh` + `scripts/verify-backups.sh` on production host
- [ ] Document production IP, SSH access, rollback procedure, scaling thresholds
### Phase 7: baseline scaling and performance
- [ ] Execute WebSocket load tests — ramp 10→100→500→1000 connections; measure p95 latency + errors
- [ ] Execute admin API benchmarks — `wrk`/`k6` against `/api/admin/*`; target p95 <1s
- [ ] Measure manifest TTFB and cache-hit distribution from multiple US regions (WebPageTest 3+ regions, <4s warm cache)
- [ ] Tune manifest TTL to 0.5× segment duration; validate `Cf-Cache-Status` distribution
- [ ] Track cache-hit ratio and R2 ops in production (Cloudflare GraphQL → Grafana panel, alert <90%)
- [ ] Capacity triggers: Prometheus rules for cache-miss >10%/15min, CPU >80%/10min
- [ ] Plan Phase 2 service separation (playout CPU, chat latency, DB state, monitoring)
- [ ] Plan Phase 3 multi-origin resilience (second Hetzner location, warm standby, DNS failover, DB/Redis replication)
### Phase 8: close out remaining test and validation gaps
- [ ] Admin frontend: user moderation tools tests (mute/ban/report, view moderation logs)
- [ ] Frontend: coverage for all critical user + admin components and interactions
- [ ] Frontend: document test cases and expected outcomes
- [ ] Backend R2: test retrieval of segments/manifests via Cloudflare edge
- [ ] Backend R2: validate edge cache hit/miss behavior with repeat requests (`scripts/validate-edge-cache.sh`)
### Playout
- [ ] Configure an R2 lifecycle rule on the `hls/` prefix as defense-in-depth (manual)
- [ ] Full-loop E2E (2-file playlist, assert `Looping...` with no `CRASHED` across the boundary) — manual via `scripts/test-playout-e2e.sh`
## Cloudflare Configuration
### DNS & Pages
@@ -102,12 +166,3 @@
- [ ] Capacity triggers: Prometheus rules for cache-miss >10%/15min, CPU >80%/10min
- [ ] Plan Phase 2 service separation — document boundaries (playout CPU, chat latency, DB state, monitoring), estimate per-service resources
- [ ] Plan Phase 3 multi-origin resilience — research second Hetzner location, design warm standby + DNS failover + DB/Redis replication
## Feature List (Future Enhancements)
- [ ] Admin backend
- [ ] Analytics: implement a settings entry to set matomo url and page id
- [ ] User frontend
- [ ] Chat: add user registration and login flows
- [ ] Chat: private DM history and search
- [ ] Analytics: add javascript snippet to send pageview events to matomo
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# TODO
> Completed tasks moved to [DONE](./DONE.md). Remaining tasks in [BACKLOG](./BACKLOG.md).
## Chat improvements (remaining)
- [ ] Manual smoke: viewer join/leave shows a 3s flash (not a chat row); reconnect <5s shows no duplicate; admin chat-log table has no system rows
## Playout improvements (remaining)
- [ ] Test in Firefox: live playback, rebuffer/recovery, chat sync; record quirks in `docs/STREAMING.md`
- [ ] Rebuild + run playout; confirm `playlist.m3u8` lists ~12 segments at 2s each
- [ ] Manual: verify viewer latency and cache-hit behavior after the change
## Setup phases remaining
### Phase 5: complete manual Cloudflare and external-service setup
- [ ] Apply Cloudflare Pages, Tiered Cache, WAF, rate limiting, and HTTPS/HSTS settings in the dashboard
- [ ] Cloudflare Pages: link custom domain and cut over frontend hosting
- [ ] Enable Smart Tiered Cache; validate `Cf-Cache-Status: HIT` from upper tier
- [ ] WAF: enable OWASP Managed Ruleset (Simulate → review 48h → Block), enable Bot Fight Mode
- [ ] Rate limiting: `/api/admin/login` + `/api/admin/*` → 10 req/10s per IP, Challenge action
- [ ] HTTPS/WSS: Always Use HTTPS, HSTS max-age=31536000 includeSubDomains preload, min TLS 1.2; enforce at edge and origin
- [ ] UptimeRobot: add HTTP monitor for `https://linearvoid.tv/health` (5min interval)
- [ ] UptimeRobot: add keyword monitor for `https://linearvoid.tv/hls/playlist.m3u8` (keyword `#EXTM3U`, 5min)
- [ ] UptimeRobot: alert on 2 consecutive failures via email + Discord/Slack webhook
- [ ] Capture evidence in `docs/operations/cloudflare-uptimerobot-checklist.md`
### Phase 6: rehearse production deployment end to end
- [ ] Provision Hetzner CX22 (2 vCPU, 4 GB, 40 GB) in Ashburn VA, Ubuntu 24.04
- [ ] Install Docker Engine + Compose plugin; open firewall: 80/443 public, 2375 runner-only
- [ ] Configure Docker daemon for remote TLS access (`-H tcp://0.0.0.0:2376` with certs)
- [ ] Create `/srv/linearvoid/data/{playlist,media,hls,chat,slate}` directories
- [ ] Add `CI_PROD_*` secrets to Gitea (DOCKER_HOST, R2 keys, admin password, DB password, Grafana password)
- [ ] Trigger CD workflow with `DOCKER_HOST` pointing to Hetzner IP
- [ ] Verify all 11 containers healthy: `/health`, `/hls/playlist.m3u8`, WebSocket
- [ ] Update Cloudflare A record `linearvoid.tv` → Hetzner IP, SSL Full (strict); test HTTPS + WSS
- [ ] Smoke test: viewer SPA loads, HLS plays, chat connects, admin login → upload → playlist → playout
- [ ] Set up Prometheus alerting notifications + UptimeRobot on production URL
- [ ] Run `scripts/backup-db.sh` + `scripts/verify-backups.sh` on production host
- [ ] Document production IP, SSH access, rollback procedure, scaling thresholds
### Phase 7: baseline scaling and performance
- [ ] Execute WebSocket load tests — ramp 10→100→500→1000 connections; measure p95 latency + errors
- [ ] Execute admin API benchmarks — `wrk`/`k6` against `/api/admin/*`; target p95 <1s
- [ ] Measure manifest TTFB and cache-hit distribution from multiple US regions (WebPageTest 3+ regions, <4s warm cache)
- [ ] Tune manifest TTL to 0.5× segment duration; validate `Cf-Cache-Status` distribution
- [ ] Track cache-hit ratio and R2 ops in production (Cloudflare GraphQL → Grafana panel, alert <90%)
- [ ] Capacity triggers: Prometheus rules for cache-miss >10%/15min, CPU >80%/10min
- [ ] Plan Phase 2 service separation (playout CPU, chat latency, DB state, monitoring)
- [ ] Plan Phase 3 multi-origin resilience (second Hetzner location, warm standby, DNS failover, DB/Redis replication)
### Phase 8: close out remaining test and validation gaps
- [ ] Admin frontend: user moderation tools tests (mute/ban/report, view moderation logs)
- [ ] Frontend: coverage for all critical user + admin components and interactions
- [ ] Frontend: document test cases and expected outcomes
- [ ] Backend R2: test retrieval of segments/manifests via Cloudflare edge
- [ ] Backend R2: validate edge cache hit/miss behavior with repeat requests (`scripts/validate-edge-cache.sh`)
### Playout
- [ ] Configure an R2 lifecycle rule on the `hls/` prefix as defense-in-depth (manual)
- [ ] Full-loop E2E (2-file playlist, assert `Looping...` with no `CRASHED` across the boundary) — manual via `scripts/test-playout-e2e.sh`