Delete the old Rex apps

- compliance (step review/review): passed after 1 cycle
  - cycle 1: passed, check session f928dd31-489a-42df-95ea-01a1ab347db8 pass (said done)
  - round 1 (cycle 1): 1 finding, 0 confirmed
    - f1 nit at cmd/rhiza/testdata/script/tui-old-apps-gone.txtar:4 on old-apps-deleted: The acceptance says each old app exits 4; the script's ! exec asserts only a non-zero exit plus 'unknown app'. A scratch build confirms each of roadmap, model, health, changes, show and live exits 4, so the acceptance is met; the script just cannot pin the code.
- quality (step review/review): passed after 1 cycle
  - cycle 1: passed, check session 8e58b81b-3bf4-4add-9c19-01a1ab34a5a8 pass (said done)
  - round 1 (cycle 1): 3 findings, 0 confirmed
    - f1 minor at cmd/rhiza/testdata/script/tui-old-apps-gone.txtar:4 on old-apps-deleted: The script uses `! exec` plus stderr 'unknown app', which passes on any non-zero exit; the leaf promises exit 4 (not_found). Other scripts pin the code with `exec sh -c 'rhiza ... 2>/dev/null; echo exit $?'` and stdout '^exit 4$' (show.txtar:60).
    - f2 minor at cmd/rhiza/tui.go:140 on rex-install-five-apps: The new `tui app daemon` branch, including its --once usage error, is not covered by any testscript or test: nothing runs `rhiza tui app daemon --once` and checks the usage error.
    - f3 nit at internal/tui/daemonapp/daemonapp.go:36 on rex-install-five-apps: The launcher Component factory returns a nil Component when New fails. launcher.App.Size then calls NaturalSize on a nil interface and panics. The stub runner returns "{}", so this cannot happen today, but it is a latent panic; the other apps' factories never return nil.
- qa (step review/review): passed after 2 cycles
  - cycle 1: failed, check session c4ccbed3-c2b8-4a1e-9846-01a1ab34d5f5 pass (said done), critic session 57bbc7ef-30ac-4502-aeff-01a1ab3972cf pass (said done)
  - cycle 2: passed, check session 37af0711-da11-473a-b574-01a1ab5dbbfe pass (said done)
  - round 1 (cycle 1): 2 findings, 1 confirmed
    - f1 major at .rhiza (change set 01M6MYNZ operations): The intent says 'retire their capabilities', but the change set retires nothing. rhiza show reports roadmap-app-list, roadmap-app-detail, roadmap-app-start-runs, roadmap-app-accept-answer, model-tree-app, model-app-search, health-app and changes-app all as retired=false. They describe apps that now exit 4 'unknown app', and rex-app-actions still describes them as Rex actions. Only draft 01M6NBXY covers the live app; nothing covers the rest. — confirmed: The intent says 'retire their capabilities'. rhiza change show lists only new nodes (old-apps-deleted, rex-install-five-apps, their evidence) and decided-by/verifies links: no retire op. rhiza show --change confirms health-app, changes-app, model-tree-app, roadmap-app-list, roadmap-app-detail and rex-app-actions are still live (to-be, not retired), so the model describes apps the code no longer has. Earlier change sets retired their deleted apps' capabilities the same way (e.g. live-app-runs), so this is a real, fixable gap.
    - f2 nit at cmd/rhiza/testdata/script/tui-old-apps-gone.txtar:4 on old-apps-deleted: The acceptance says each exits 4, but '! exec' accepts any non-zero exit. Exit 4 was confirmed by hand with the built binary.
  - round 2 (cycle 2): 2 findings, 0 confirmed
    - f1 nit at internal/api/rex_install.go:41 on rex-install-five-apps: The generated rhiza.lua comment still gives the deleted app as its example: 'keys = { roadmap = "m" }'. Remapping roadmap now does nothing; the example should name one of the five apps, such as inbox.
    - f2 nit at cmd/rhiza/testdata/script/tui-old-apps-gone.txtar:4 on old-apps-deleted: '! exec' accepts any non-zero exit, while the acceptance says exit 4. Running the built binary by hand confirms all six exit 4.
- scope (step review/review): passed after 2 cycles
  - cycle 1: failed, check session bfcd53ef-72ad-47cf-b6eb-01a1ab35089d pass (said done), critic session bea1e86f-548f-4a60-80ef-01a1ab399e29 pass (said done)
  - cycle 2: passed, check session 5e5fbc53-ee9f-4288-bffe-01a1ab5df5e0 pass (said done)
  - round 1 (cycle 1): 1 finding, 1 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/orchestration/daemon/daemon-status/health-command/health-app.md:1: The intent says to 'retire their capabilities', but no leaf covers it and the change set has no retire op: capabilities describing the deleted apps (health-app, roadmap-app-detail, roadmap-app-accept-answer, roadmap-detail-run-tick, roadmap-app-start-runs and its children, among others) stay live, so after landing the model describes apps the code no longer has. All code changes themselves stay inside the two leaves: package deletions, tui.go branches, Makefile/makeupdate_test BUDGET_PKGS, testscripts, daemonapp's launcher registration (needed for the five actions), text-refs-display moved to the commands and a quiettest comment; nothing outside the intent was added. — confirmed: Verified: the branch's .rhiza/log diff holds only additions with no retire op, and rhiza show reports health-app, changes-app, roadmap-app-detail and model-tree-app (with its child) as retired=false. Their packages are deleted and they now exit 4 'unknown app'. The intent explicitly says 'retire their capabilities', so after landing the model would describe apps the code no longer has.
  - round 2 (cycle 2): no findings
- model (step review/review): passed after 4 cycles
  - cycle 1: failed, check session fc89c97b-065c-4d3d-bcdf-01a1ab3548fe pass (said done), critic session 1aee85ac-1951-46d5-b9fd-01a1ab39cc3e pass (said done)
  - cycle 2: failed, check session 8374b527-4771-4412-bf3b-01a1ab5e2f36 pass (said done), critic session a3e1956c-1cd2-49c8-816d-01a1ab608573 pass (said done)
  - cycle 3: failed, check session a10beb23-d212-46fa-ade9-01a1ab73e498 pass (said done), critic session 92e61df3-5c01-4699-b506-01a1ab764920 pass (said done)
  - cycle 4: passed, answered by old-apps-model-clauses-dropped, roadmap-paged-drop-deleted-app-readers, check session de91ad02-29dc-441e-8962-01a1ab7f6d5f pass (said done)
  - round 1 (cycle 1): 2 findings, 2 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/roadmap-app-list.md:1 on old-apps-deleted: The intent says to retire the deleted apps' capabilities, but the change set retires none, so the model still describes code that this branch deletes. Still live: roadmap-app-list, roadmap-app-umbrella-row, roadmap-app-detail, roadmap-detail-run-tick, roadmap-app-accept-answer, roadmap-app-start-runs, model-tree-app, modelapp-timing-alone, model-app-search, changes-app, health-app, read-apps-match-cli, write-apps-previewed and runs-sessions-apps, plus any live/requests app capabilities. Each must be retired in this change set (their CLI-command children, such as question-answer-op, plan-guide-new-change-set and run-start-new-intent, moved or kept as needed so the CLI keeps every command). — confirmed: The intent says 'retire their capabilities', but the change set's log holds only node.create and link.create ops, with no retire. rhiza show finds changes-app, health-app, roadmap-app-list, roadmap-app-detail, model-tree-app, model-app-search, read-apps-match-cli, write-apps-previewed and runs-sessions-apps all still live (retired=false). Their acceptance cites internal/tui packages and testscripts (tui-changes-app, tui-health-app, roadmap app tests) that this branch deletes, so the model describes code that no longer exists.
    - f2 major at .rhiza/rendered/capability/rhiza/rex-app-actions.md:7 on rex-install-five-apps: The live capability rex-app-actions still has acceptance requiring one rex.action per registered app 'readapps, writeapps and modelapp'. Those packages are deleted and the rex-install testscript now checks the five apps, so this acceptance can no longer be met as written. Set its acceptance to the five-app set, or have rex-install-five-apps supersede it. — confirmed: rex-app-actions (01M644QW) is live, and its acceptance requires one rex.action per registered app '(readapps, writeapps and modelapp)'. Those packages are gone (internal/tui now holds only autonomyapp, daemonapp, inboxapp, launcher, modalopen, modalshell, requestapp and runsapp), and rex-install.txtar now checks for exactly five rex.action entries. Nothing in the change set supersedes or amends it, so its acceptance can't be met as written.
  - round 2 (cycle 2): 3 findings, 2 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/roadmap-new-work-requests.md:1 on old-apps-deleted: roadmap-new-work-requests is still live, but all of it describes the deleted roadmap app ('The roadmap app's new change set and new milestone keys file a plan request'). Its acceptance test, TestNewWorkFilesPlanRequest in internal/tui/roadmapapp/roadmapapp_test.go, is deleted on this branch. The intent says to retire the deleted apps' capabilities, so retire it like the other roadmap-app-* capabilities. — confirmed: rhiza show --change finds roadmap-new-work-requests live (retired=false). Its statement is purely about the roadmap app's n/m keys, and its acceptance is a roadmap app unit test. internal/tui/roadmapapp (roadmapapp_test.go included) is deleted on this branch. The intent says to retire the deleted apps' capabilities, so this one was missed.
    - f2 major at .rhiza/rendered/capability/rhiza/run-start-through-daemon.md:1 on old-apps-deleted: Live capabilities have acceptance that cites tests this branch deletes, so it can no longer be met as written (the same defect as cycle 1's rex-app-actions finding). run-start-through-daemon: 'a unit test on the roadmap app's fake runner shows its start key queueing the run' (TestPlanRunIsQueuedForTheDaemon, deleted). request-queue: 'the roadmap app's n and m keys then reach a working request command'. change-show-diff: 'tui-write-apps.txtar shows it in the change-show app' (the script is deleted). feed-hides-actor-records: 'the changes app test hides the actor-only change set' (changesapp_test.go is deleted). budgets-measure-in-quiet: the budget phase runs over 'internal/tui/modelapp', which the Makefile's BUDGET_PKGS no longer lists. Update each acceptance to drop the deleted app's clause. — confirmed: Under the change set, each cited acceptance is live and unchanged and names deleted code. run-start-through-daemon cites the roadmap app's fake-runner unit test, and request-queue the roadmap app's n and m keys (roadmapapp deleted). change-show-diff cites tui-write-apps.txtar (deleted). feed-hides-actor-records cites the changes app test (changesapp_test.go deleted). budgets-measure-in-quiet lists internal/tui/modelapp, which the branch's Makefile drops from BUDGET_PKGS. None of these can be met as written.
    - f3 minor at .rhiza/rendered/capability/rhiza/roadmap-paged.md:1 on old-apps-deleted: Live statements still name deleted apps: roadmap-paged ('the roadmap TUI app and the model app's roadmap tab read it with all', plus 'and the roadmap app' in its acceptance), health-machine-part ('rhiza health and the Health app'), feed-hides-actor-records ('rhiza feed and the changes app'), change-show-diff ('so the change-show app shows it') and run-start-through-daemon ('rhiza run start and the roadmap app's start keys'). The CLI behavior they describe stays, but the app clauses describe code that is gone.
  - round 3 (cycle 3): 5 findings, 2 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/model/text-references/text-ref-display.md:1 on old-apps-deleted: text-ref-display is still live, and its acceptance still requires 'a read app's --once JSON (rhiza tui app <read app> --once) shows @@renamed'. Its statement also names 'and the read apps'. This branch deletes readapps and rewrites text-refs-display.txtar to call rhiza show, slice and why instead (cmd/rhiza/testdata/script/text-refs-display.txtar:78-83), so the acceptance can no longer be met as written. This is the same defect cycle 2 confirmed for run-start-through-daemon and the others: drop the read-app clause from both fields. — confirmed: rhiza show --change finds text-ref-display live and unchanged. Its acceptance still requires 'a read app's --once JSON (rhiza tui app <read app> --once) shows @@renamed', and its statement names 'the read apps'. This branch deletes internal/tui/readapps, and text-refs-display.txtar now checks rhiza show, slice and why in place of the read app (lines 82-87), so the acceptance can't be met as written.
    - f2 major at .rhiza/rendered/capability/rhiza/views/paged-lists/roadmap-paged.md:1 on old-apps-deleted: roadmap-paged's acceptance still requires that 'a roadmap of more than 100 change sets is read whole by health's roadmap check and the roadmap app'. Its statement also says 'the roadmap TUI app and the model app's roadmap tab read it with all'. roadmapapp, with its paged_test.go, and modelapp are deleted on this branch, so the acceptance cannot be met as written. Keep only health's roadmap check. — confirmed: rhiza show --change finds roadmap-paged live and unchanged. Its acceptance requires the >100 change set roadmap to be read whole 'by health's roadmap check and the roadmap app'. This branch deletes internal/tui/roadmapapp, paged_test.go included, and internal/tui no longer has a modelapp, so the roadmap-app clause can't be met as written.
    - f3 minor at .rhiza/rendered/capability/rhiza/runtime/health-machine-part.md:1 on old-apps-deleted: The statement still says 'rhiza health and the Health app show a machine part'. The health app is deleted on this branch. The acceptance covers only rhiza health --json, so only the statement is stale.
    - f4 minor at .rhiza/rendered/capability/rhiza/workflows/workflow-runs/run-status/run-status-open-cycle.md:1: The statement and acceptance still name the live app ('the live app counts it running', 'a Go test of the live app's checks summary'). The live app was deleted before this branch's merge base, but old-apps-deleted claims the live app as gone, so this change set is the natural place to drop the clause.
    - f5 nit at .rhiza/rendered/capability/rhiza/integrity/self-check/test-temp-folders-swept.md:1: The statement gives internal/tui/modelapp TestGeneratedModel's t.TempDir() as its example of an out-of-scope folder. That package no longer exists.
  - round 4 (cycle 4): 3 findings, 0 confirmed
    - f1 minor at .rhiza/rendered/capability/rhiza/test-temp-folders-swept.md:1 on old-apps-deleted: test-temp-folders-swept's statement still uses 'internal/tui/modelapp TestGeneratedModel's' t.TempDir() as its example of a folder outside the leaf. This branch deletes that package. Decision old-apps-model-clauses-dropped says every live capability that names a deleted app should drop that mention. It is only an example, so the acceptance can still be met.
    - f2 nit at Makefile:35: BUDGET_TESTS still lists TestGeneratedModel, and so does budgets-measure-in-quiet's acceptance (with makeupdate_test.go:83-86). No test of that name exists after modelapp is deleted. Code and model agree, but the name is dead in both and could be dropped together.
    - f3 nit at .rhiza/rendered/index.md:1: make self-check fails on stale render: index.md and four actor pages (claude-code-1fbbf353, -6a8b9d83, -a43eb4bf, -de91ad02) recorded during the run. rhiza render needs to run before merge, or CI's make check fails. Also: the intents tui-read-apps, tui-model-view, tui-writes-previewed and tui-runs-sessions stay live, but every capability serving them is now retired.
  - question leaf-failed-01m6njpm-1 after cycle 3 on f1, blocks leaf old-apps-deleted
  - question leaf-failed-01m6njpm-2 after cycle 3 on f2, blocks leaf old-apps-deleted

## Change-set fixes

- cycle 2 (step review/review): fixer session 96237481-999f-45e5-8688-01a1ab43e429: pass, commit 64c363bf1f77 (said done)

## Code checks

- step review/code: pass

## Sign-offs

- signoff (visit 1): approved by rule autonomous

## Sessions

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