catalog: the lifecycle implementation itself (fixes the previous commit)

The previous commit landed only the new test/badge files: a 'git stash' used
to compare REUSE.md ref-check output silently dropped the staged index, so
every modification to an existing file was left behind and that commit does
not build. This adds the metadata field, the predicates, the fail-closed
deploy gate, the catalog filter, the funcmap entries, the template edits and
the docs that those tests exercise.

REUSE.md

@@ -85,6 +85,7 @@
 | `Manager.EnsureBaseStack` | controller/internal/stacks/infra.go | `() error` | Traefik/cloudflared/FileBrowser infra convergence | Renders from `internal/infra` templates |
 | `appbackup.ClassifyBinds` / `ValidateBackupSpec` | controller/internal/appbackup/classify.go | `(spec, binds) ([]ClassifiedBind, bool)` / `(spec, binds) error` | Backup-classification (Task 2, referential coupling) — pure | Two-level default: explicit wins over `:ro`; unlisted writable→mandatory, unlisted `:ro`→excluded; nil spec→legacy/false. Validate REJECTS the WHOLE block on any defect (whole-block semantics). INERT — no tier consumes it yet |
 | `ParseComposeClassifiableBinds` | controller/internal/stacks/classify_binds.go | `(composePath) []appbackup.ComposeBind` | `${VAR}`-relative binds + `:ro` for classification | Do NOT use `ParseComposeHDDMounts`/`ExportDataMounts` as classifier input (§traps) — they resolve absolutes, drop `:ro`, or union the userdata ROOT. Short-syntax only |
+| `Metadata.EffectiveLifecycle` / `CanInstall` / `IsAbandoned` + `web.lifecycleBadge` / `web.visibleCatalogStacks` | controller/internal/stacks/metadata.go, controller/internal/web/metabadge.go, controller/internal/web/handlers.go | `meta.CanInstall() bool` | app lifecycle: `available` / `hidden` / `abandoned` (v0.158.0) | THE single interpretation of `.felhom.yml` `lifecycle:` — every surface must go through these, never compare the raw string. Listing drops `!Deployed && !Protected && !CanInstall()`; `api.deployStack` refuses server-side BEFORE any mutation (hiding a button is not a gate), `stacks.DeployStack` repeats it for non-API callers. **Unknown value fails OPEN** (→ available + one WARN) — opposite to the gate on purpose: a typo must never pull a working app out of every catalog. **NEVER let lifecycle reach orphan detection** (`getCatalogTemplateSlugs`) — a withdrawn template stays in the tree, or every deployed instance reads as `Elavult` and gets a Törlés button. Badges: `MetaBadge` + `meta_badge` partial, built generic for R-56 difficulty labels |
 | `Manager.ClassifiedBinds` + `StackDataProvider.GetStackClassifiedBinds` | controller/internal/stacks/metadata.go, appbackup/appdata.go | `(name) ([]appbackup.ClassifiedBind, bool)` | Per-stack classification through the REAL LoadMetadata validate path | The wired seam Task 3 consumes; LoadMetadata is the SINGLE validation choke point (bad block → nil + one ERROR → legacy) |
 | `backup.Manager.DumpAppVolumesSafe` | controller/internal/backup/backup.go | `(stackName) error` | Volume tar of a live app | Stops → dumps → restarts; surfaces BOTH errors (app may be left stopped). Check `GetDockerVolumes()!=0` + `IsProtectedStack` BEFORE calling — it stops the stack before its own volume check (see `runVolumeDumps`) |
 | `backup.Manager.ListRestorePoints` | controller/internal/backup/restore_points.go | `(stackName) ([]RestorePoint, bool)` | Restorable keep-side backups (the /api/backup/snapshots payload) | ONE point per app (the current unit); tier always 1 — never list Tier-2 (not restorable via /backup/restore) |
@@ -242,7 +243,7 @@
 | `dumpVolumesSafe` (func seam) | controller/internal/backup/backup.go | nil → real `DumpAppVolumesSafe` | injected in controller/internal/backup/volume_dumps_test.go (gating tests without Docker) |
 | `generateSecret` (func seam) | controller/internal/backup/backup.go | `stacks.Manager.GenerateSecretForField` via `SetSecretGenerator` (main.go) | injected in controller/internal/backup/restore_secrets_gen_test.go |
 | `restoreFilesCopier` (func seam) | controller/internal/backup/backup.go | nil → real `rsyncRestoreMissing` | injected in controller/internal/backup/tier2_restore_test.go (orchestration without rsync) |
-| `tier2Mirror` (func seam) | controller/internal/backup/backup.go | nil → real `rsyncMirror` | both RunTier2 rsync legs; injected in controller/internal/backup/tier2_appdata_test.go (resolve→mirror without rsync) |
+| `tier2Mirror` (func seam) | controller/internal/backup/backup.go | nil → real `rsyncMirror` | both RunTier2 rsync legs; injected in controller/internal/backup/tier2_test.go (resolve→mirror without rsync) |
 | `migSeams.resolveNames` (func seam) | controller/internal/stacks/migrate.go | nil → real `ResolveAppDataDirNames` (compose-derived) | injected in controller/internal/stacks/migrate_fs3_test.go (F-S3 appdata dir-name resolution) |
 
 Cross-repo edges:
@@ -260,7 +261,7 @@ Cross-repo edges:
 - **Docker volume tar streaming (v0.125.0)**: `appexport.dockerExec` (seam, package var) + `withVolumeHelper`/`exportVolumeTar`/`importVolumeTar` — stream volume content via `docker cp` through a stopped helper container. NEVER `docker run -v <controller-local path>` — the daemon resolves `-v` host-side and strands the data when the controller is containerized (the v0.124.0 HIGH finding); `controller/scripts/docker_run_volume_path_gate.py` enforces (every `"-v"` allowlisted with its WHY).
 - **Guarded file download (v0.124.0)**: `handler_export_download.go` — the canonical shape for streaming a server-side file to the browser: accept a BASENAME only (shape regexp + no separators/`..`), `filepath.Join` then assert `filepath.Dir(path) == dir`, `io.Copy` (never ReadAll), `Content-Disposition: attachment`, remove after a successful stream, TTL sweep (`sweepFabDownloads(dir, now, maxAge, logger)` — now injected for tests). Red-proof the guard by loosening to prefix-matching (the `..` case must fail).
 - **Backups sub-page data**: `backupsCommonData(page, title, r)` + `backupsOffboxData(data)` (handlers.go) — the ONLY builders for the four `/backups*` pages; a new backups section extends these, never re-derives in a page handler. (The one-shot v0.124.0 move gate `backups_split_move_check.py` was retired in v0.126.0.)
-- **App-list row (v0.126.0)**: `app_list_row`/`app_list_row_end` in `templates/app_row.html` is THE canonical list pattern — icon+name(+secondary) left, caller action block right; open with `dict "Slug" ... "Name" ...` (optional `Secondary`/`RowClass`/`Href`/`FallbackIcon`), close with `app_list_row_end`. Do NOT hand-roll app rows — `scripts/app_row_dedup_gate.py` enforces single-sourcing (the backups_apps expander header is the one allowlisted aligned copy). Infra display identity: `inframeta.go` map + `infraMeta` func (filebrowser is the only Linked stack).
+- **App-list row (v0.126.0)**: `app_list_row`/`app_list_row_end` in `controller/internal/web/templates/app_row.html` is THE canonical list pattern — icon+name(+secondary) left, caller action block right; open with `dict "Slug" ... "Name" ...` (optional `Secondary`/`RowClass`/`Href`/`FallbackIcon`), close with `app_list_row_end`. Do NOT hand-roll app rows — `controller/scripts/app_row_dedup_gate.py` enforces single-sourcing (the backups_apps expander header is the one allowlisted aligned copy). Infra display identity: `inframeta.go` map + `infraMeta` func (filebrowser is the only Linked stack).
 - **Consequential-action confirm (LIGHT)**: `felhomConfirm(el, question, onYes)` in layout.html (v0.123.0) — the trigger swaps in place to "kérdés + Igen/Mégse"; form buttons opt in with `data-confirm="…"` (delegated listener, `requestSubmit` keeps formaction/name-value). NEVER native `confirm()`/`prompt()` (OS-modals freeze browser automation — drill F-11; `native_confirm_gate.py` enforces). Heavy destructive flows keep the `.confirm-overlay` `openDialog` pattern.
 - **New hub event**: typed `Notify*` wrapper on Notifier + hub allowlist entry (cross-repo).
 - **New app integration**: `integrations.Manager.RegisterHandler` with `IntegrationKey(provider, target)`.