# REPORT — v0.315.0: one app page with four tabs (2026-10-15)

## 1. Baselines

| Repo | `main` at start | Version | → |
|---|---|---|---|
| felhom-controller | `85f65c7` | v0.314.0 | **v0.315.0** |
| felhom.eu | `06e7cf8c` (the task said `3263bb2`; it had moved — two other sessions are pushing) | docs only | — |
| app-catalog-felhom.eu | `e67aad4` | read only | — |

Architecture read before any claim: `02-controller-module-map.md` (`web/`, the R-571 alert-placement
rule), `10-localisation.md` §7, `15-media-library.md` (the Plex claim path), and the controller's
`CLAUDE.md`, `REUSE.md` and `.claude/rules/{ui-hungarian,gates,unprompted-work}.md`.

**Where the work ran.** Edited on the Windows workstation; **built and tested on DooPlex** in an
isolated scratch clone (`/mnt/5_hdd/felhom.eu/scratch/cc-apptabs`) so the shared DooPlex checkout —
which two other sessions are using tonight — was never dirtied. The sync normalises line endings to
LF and restores any file it did not mean to touch, because this checkout has `core.autocrlf=true`
while six files (`.gitignore`, `Dockerfile`, `Makefile`, the three infra templates) are stored in git
WITH CRLF; a blanket normalisation rewrote all six on the first attempt.

## 2. Files created / modified

**Created (11)**
`controller/internal/web/app_page.go` · `after_start.go` · `app_page_test.go` · `guide_render_test.go` ·
`controller/internal/stacks/guide_test.go` ·
`templates/app_shell.html` · `app_settings.html` · `app_data.html` · `app_guide.html` · `app_logs.html` · `app_fields.html`

**Deleted (4 templates)** `templates/app_info.html` · `logs.html` · `app_export.html` · `tier2_config.html`
— with the three page handlers that rendered them (`logsHandler`, `exportPageHandler`,
`tier2ConfigPageHandler`). The POST handlers beside them (`tier2ConfigSaveHandler`,
`appEmailToggleHandler`) stay, with their URLs.

**Modified (main ones)** `web/server.go` (routes + the GET-only redirects) · `web/handlers.go`
(`appDetailHandler` → `appCommonData`; `deployHandler` → `deployPageData` + a thin renderer) ·
`web/media_events.go` (`applyPlexClaim` extracted) · `web/tier2_config_handler.go` (redirect targets) ·
`templates/deploy.html` (install-only; 1197 → 544 lines) · `stacks.html`, `dashboard.html`,
`backups_apps.html`, `app_import.html` (links) · `stacks/metadata.go`, `metadata_i18n.go`,
`appinfo_address.go`, `manager.go` (the guide) · both locale files · `scripts/template_id_gate.py`,
`scripts/test_gate_decoys.py`, `scripts/i18n_go_keys.json`.

## 3. Commits on `main`

| Commit | What |
|---|---|
| (see `git log`) | v0.315.0 — the whole slice in one commit, because the template split, the routes and the fixtures cannot be green apart |

## 4. Tests and red-proofs

**New test groups (9 functions across 3 files), all through the production router where routing is
the subject.**

| Test | Asserts |
|---|---|
| `TestAppPage_DeployedDefaultsToSettings` | `/apps/{slug}` renders the settings tab (`data-tab="settings"` + `aria-selected="true"`), all four tabs present, Mukodes offers restart+stop and not start, **the header contains no `stackAction(`**, no Pi/x86 text |
| `TestAppPage_NotDeployedShowsGuideOnly` | no tab bar, `data-install-cta`, every tab suffix → 302 `/apps/grocy`; unknown app 404; unknown suffix 404 |
| `TestAppPage_OldURLsRedirectGETOnly` | the five old GETs → 302 with the right Location, query carried, `?raw=1` still text/plain, unknown name 404, **POST to `/backup` and `/app-email` reaches its handler** |
| `TestAfterStart_PlexThroughRouter` | POST `/apps/plex/after-start/PLEX_CLAIM` → the real registry → a fake Plex, by ADDRESS; the gate moves; the card disappears |
| `TestAfterStart_NoActionNoCard` | an unregistered field: no card, POST 404, **zero calls to the fake** |
| `TestAfterStart_RegistryAloneIsNotAnInvitation` | a REGISTERED action whose field the catalog does not declare: 404, zero calls, the gate untouched |
| `TestAfterStart_CardHiddenWhenNotNeeded` | registered + `Needed()==false` → no card |
| `TestAfterStart_PlexClaimOldRouteStillWorks` | `/apps/plex/plex-claim` runs the same entry |
| `TestInstallPage_BackGoesToApp` | Vissza and Mégsem href `= /apps/grocy`; the post-install links point at the tabs; unknown app 404 |
| `TestAppPage_EachTabRendersItsOwnContent` | one marker per tab, and **the log poller on the log tab only** |
| `TestGuide_RenderRules` | checked renders / empty does not / absent says so / `<script>` escaped / DOMAIN filled |
| `TestGuide_EnglishFallsBackFieldByField` | English FAQ + Hungarian sections; a blank English intro falls back; `checked_version` survives; the Hungarian page is unchanged |
| `TestGuide_*` (stacks, 8 funcs) | parse, the render gate, the overlay field by field, extras dropped+counted, `WithAddress` over every string, `Clone` not shared, and the catalog snapshot carries no guide yet |

**Red-proofs — each break seen failing, then reverted.**

| # | Break | Result |
|---|---|---|
| A | default tab → guide for a deployed app | `TestAppPage_DeployedDefaultsToSettings` FAILS |
| B | drop the not-deployed tab redirect | `TestAppPage_NotDeployedShowsGuideOnly` FAILS |
| C | drop `&& r.Method == http.MethodGet` from the `/backup` redirect | `TestAppPage_OldURLsRedirectGETOnly` FAILS |
| C2 | 302 → 301 | `TestAppPage_OldURLsRedirectGETOnly` FAILS |
| D | remove the `/after-start/` route from `server.go` | `TestAfterStart_PlexThroughRouter` FAILS (404) |
| E1 | drop the no-registered-action guard in `afterStartFields` | `TestAfterStart_NoActionNoCard` FAILS |
| **E2** | drop `!declared` in `appAfterStartHandler` | **PASSED at first — see below** |
| E2′ | the same break, after writing `TestAfterStart_RegistryAloneIsNotAnInvitation` | FAILS: *"POST for a field the catalog does not declare = 200"*, **2 calls reached Plex**, the gate moved |
| F | guide gate `Rendered` → `Sections` | `TestGuide_RenderRules` FAILS |
| G | install Vissza → `/stacks` | `TestInstallPage_BackGoesToApp` FAILS |
| H | `deepCopyStack` stops cloning the guide | `TestDeepCopyStackMetaSharesNoReference` FAILS, naming `Guide.Sections` and `Guide.FAQ` |
| 1–3 | `Rendered()` without `checked_version`; `overlayGuide` replacing the FAQ whole; `WithAddress` skipping the guide | the three matching `TestGuide_*` FAIL |

**E2 is the finding of this session.** The handler has two guards that look like one: the field must
be registered in Go AND declared by this box's catalog. Deleting the second left the whole suite
green, because every test that reached it was already refused by the first. With it deleted, a POST
naming a field the catalog does not declare **reached Plex and opened the setup gate**. The missing
test was written, the break repeated, and it now convicts. This is the project's own
„a comment asserting an invariant needs a test pinning it" class, found the way the rule says to find
it.

**Also caught by a red-proof discipline, not by the suite:** my first full-gate run read
`go test ./... | grep -v ok | head -25`, whose exit code is `head`'s. It reported 0 while
`TestDeepCopyStackMetaSharesNoReference` was failing (break H, caused by the new guide slices). Re-run
capturing `go test`'s own `$?`: **`GO_TEST_RC=0`, 37 packages `ok`, zero `FAIL` lines.** The
„exit codes that lie" trap, hit and corrected in-session.

## 5. Test count

`internal/web` + `internal/stacks` test functions: **1 063 → 1 084** (+21: 12 new functions, 9 of them
sub-tested). Parity CASES: 145 → 148.

## 6. Deployed versions

**Nothing is deployed yet.** The image is built and pushed in §9 below; the floor is NOT raised — per
`.claude/rules/unprompted-work.md` item 6 that waits until it has run on Tester 1, demo-hp and
demo-felhom through the normal update path with a green box walk.

## 7. NOT yet live-validated

1. **The operator's own look at the page in a browser** — one installed and one not-installed app on
   demo-hp. Asked for in `STATUS.md`. Claude in Chrome runs on the Windows workstation and was used
   for exactly this (§9); the operator's judgement of the LAYOUT is still theirs to give.
2. **A real Plex claim through the new card.** The old path is proven live (R-1060, 2026-10-15); the
   new card reaches the same `applyPlexClaim` and is proven against a fake Plex that answers as the
   measured one does. No real claim was made — it needs the household's code and a throwaway server.
3. **A catalog guide rendered from a real template.** No template carries `app_info.guide` yet; the
   render is proven against fixtures and a unit test.

## 8. Evidence

`/mnt/5_hdd/felhom.eu/evidence/app-page-2026-10-15/` on DooPlex, copied at the end of each phase:
`gates.txt` (the runner, all green), `decoys.txt` (53 decoys), `fullgate.txt` (`go test ./...` with
its own exit code), `redproofs.txt`, and `live/` (§9).

## 9. Live validation

Endpoint-level on demo-hp through the endpoints the UI invokes, **plus a real browser** — Claude in
Chrome runs on this workstation, which is why CC runs here. Both are recorded in `live/`.

## 10. Parity fixtures (the §9 exception), by name

**Removed (33).** `app_info_*` ×21 · `app_export` · `logs` · `deploy_deployed_{running,stopped,restored_login}` ·
`tier2_{not_hdd,not_hdd_protected,not_hdd_same_disk,not_hdd_absent,notarget_disabled,target_ssd,target_auto}`.

**Added (36).** `app_settings_*` ×21 (`not_checked`, `deployed`, `operator_creds`, `updating`,
`setup_gate_{button,probe,native}`, `after_start`, `install_hold`, `close_signup`,
`close_signup_native`, `signup_native`, `signup_native_open_failed`, `signup_closed`, `signup_window`,
`lost_files`, `known_login_changed`, `ladder_steps`, `hold_log`, `running`, `stopped`,
`restored_login`) · `app_data_*` ×9 (`export`, `deployed`, and the seven Tier-2 scenarios) ·
`app_guide_*` ×4 (`installable`, `available`, `full`, `no_guide`) · `app_logs`.

**Every removed case's scenario is carried by a new one** — the names map one to one except that
`app_info_deployed` split (its data-folder half is `app_data_deployed`) and two cases were added for
content no old case had: `app_guide_full` (a rendered guide with sections and FAQ) and
`app_guide_no_guide` (the „no guide yet" line).

**Changed, and NOT covered by the task's exception list (14).** The task's §9(b) names the pages it
expected to change. These fourteen also changed, and each is required by the task's own §2.6 and
Part 3 — a link change and a badge removal ARE byte changes:

- `deploy_new`, `deploy_new_blocked`, `deploy_new_memory_blocked` — the Pi badge removed (Part 3), the
  Vissza/Mégsem retargeted (§2.5). *(In §9(b)'s `deploy_*` set.)*
- `stacks_full`, `stacks_unhealthy_stop`, `stacks_install_interrupted` — the Pi badge removed, the
  install and log links retargeted. *(In §9(b)'s `stacks_*` set.)*
- `dashboard_full`, `backups_apps_{ok,error,running,other,stale_copy,offsite_offer,interrupted_run}` —
  **not in §9(b)'s list**, but §2.6 requires exactly these links to be updated. Stated here rather
  than quietly regenerated.

**Byte-identical, and that is the proof of no collateral change:** every other fixture, 98 of them,
including `catchall_app` and `app_import_{empty,bundles}`. The app-import page needed a comment about
why one link deliberately keeps the old URL; a `//` JS comment changed its bytes, so it is written as
`{{- /* … */}}` with the trim marker and the page is unchanged.

## 11. Observations

- **NOT-A-FINDING:** `page.title.tier2_config` became dead the moment `tier2ConfigPageHandler` was
  deleted (it was the only producer). Removed from both locale files, from
  `scripts/i18n_go_keys.json` and from `i18n_wiring_test.go`'s two lists in the same commit. Caused by
  this change, so cleaning it is part of it, not scope creep.
- **NOT-A-FINDING (fixed without a row, the size rule):** `scripts/template_id_gate.py` was
  file-scoped, so the shared `app_deploy_fields` partial made it convict ids that are demonstrably on
  the page. It now follows `{{template}}` includes transitively. The hazard that buys is a VACUOUS
  check, so it ships with a scope decoy — a reference planted in `deploy.html` to an id defined only
  in `app_data.html`, a file `deploy.html` does not include — which the gate must still convict. It
  does. 53 decoys green.
- **NOT-A-FINDING:** the i18n gate caught „Please" in the new English string (the copy style forbids
  pleading); reworded before the commit.
- **FILED: R-1067** — the catalog still carries `pi_compatible:` and nothing reads it. Deliberately
  left: a box on 0.314.0 would show „csak x86" on every app. Gated on the fleet floor reaching
  0.315.0. (A row and not a session fix: it is another repo and it is blocked on the floor.)
- **FILED + CLOSED: R-1066** — no architecture document covered the app page. Closed by this task's
  `02-controller-module-map.md` „The app page" and `10-localisation.md` §7 additions.
- **Capability map:** no row covers „the app page", so none moved. Said rather than assumed.
- **Register size: 156 before → 157 after; 1 opened (R-1067), 1 opened-and-closed (R-1066).**
- **System poster:** no fact in `felhom-system-poster.facts.md` changed (no machine, role, traffic
  path, backup tier, time, retention, key or known gap). Neither file edited; nothing added to STATUS.
- **Behaviour change worth naming:** the initial-credentials and default-login cards used to render
  only when `HasAppInfo` was true — incidental (the FileBrowser branch set `HasAppInfo = true` by hand
  just to make its credentials show). On the settings tab they are no longer gated on catalog copy
  existing. A login is not catalog prose.