Request app on the modal shell

- build/build (visit 1): pass, then build/render: 1 of 1 leaves passed
- build/render (visit 1): pass, then build/check: exit 0
- build/check (visit 1): pass, then review/code: exit 0
- review/code (visit 1): pass, then review/review: exit 0
- review/review (visit 1): pass, then review/render: 5 of 5 checks passed
- review/render (visit 1): pass, then render-pr: exit 0
- render-pr (visit 1): pass, then open-pr: exit 0
- open-pr (visit 1): pass, then wait-pr: exit 0
- wait-pr (visit 1): pass, then pr-green: held after 31 checks
- pr-green (visit 1): pass, then signoff: exit 0
- signoff (visit 1): pass, then rebase: approved by rule autonomous
- rebase (visit 1): pass, then wait-rebased: exit 0
- wait-rebased (visit 1): pass, then rebased-green: held after 23 checks
- rebased-green (visit 1): pass, then land: exit 0
- land (visit 1): pass, then wait-landed: exit 0
- wait-landed (visit 1): pass, then landed-green: held after 23 checks
- landed-green (visit 1): pass, then rebase-merge: exit 0
- rebase-merge (visit 1): pass, then wait-rebased-merge: exit 0
- wait-rebased-merge (visit 1): pass, then rebased-merge-green: held after 1 checks
- rebased-merge-green (visit 1): pass, then merge: exit 0
- merge (visit 1): pass, then wait-main: exit 0
- wait-main (visit 1): pass, then main-green: held after 1 checks
- main-green (visit 1): pass, then close-out: exit 0
- close-out (visit 1): pass, then ship: exit 0
- ship (visit 1): pass, then end: exit 0

## Leaves

- request-app-form (step build/build): passed: attempt 1: verifier passed
  - attempt 1 builder, session 47536e0d-ecb2-4d79-90c3-01a1aaa067ba: pass (said done)
  - attempt 1 verifier, session de725362-9a10-49a7-a2d8-01a1aaa3a145: pass (Evidence written by the verifier)

## Checks

- compliance (step review/review): passed after 2 cycles
  - cycle 1: failed, check session 9e5a01fb-0da2-4890-9cfd-01a1aaa7b373 pass (said done), critic session d0332afb-a938-480d-ade5-01a1aab01e84 pass (said done)
  - cycle 2: passed, check session 73959455-84eb-44c4-92d4-01a1aab54863 pass (said done)
  - round 1 (cycle 1): 1 finding, 1 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/orchestration/daemon/plan-requests/requests-app.md:1: The change set's intent says it retires the capabilities of the old requests app it replaces, but the change set writes no retire: requests-app (01M6CS27Z, acceptance cites tui-requests-app.txtar and --once listing) and requests-app-milestone (01M6JE40P, acceptance cites a requestsapp unit test and a milestone field) stay live while this diff deletes internal/tui/requestsapp and tui-requests-app.txtar, so the model now claims capabilities the code no longer has. Retire both in this change set. — confirmed: The change set's intent says it retires the capabilities of the old requests app; at HEAD internal/tui/requestsapp and tui-requests-app.txtar are deleted, yet no log entry in this change set retires requests-app (01M6CS27Z) or requests-app-milestone (01M6JE40P): both render live with acceptance citing the deleted script and requestsapp unit tests. The model would claim capabilities the code no longer has; retiring both is needed to meet the intent as written.
  - round 2 (cycle 2): no findings
- quality (step review/review): passed after 1 cycle
  - cycle 1: passed, check session 78a348d9-024d-45b4-9897-01a1aaa7ee58 pass (said done)
  - round 1 (cycle 1): 3 findings, 0 confirmed
    - f1 minor at .rhiza/rendered/capability/rhiza/orchestration/daemon/plan-requests/requests-app.md:1: The intent says the change set retires the old requests app's capabilities, but no write retires requests-app or requests-app-milestone; the model still claims the deleted internal/tui/requestsapp list view and its milestone field (ctrl+o) as capabilities with passing evidence.
    - f2 nit at internal/tui/requestapp/requestapp_test.go:107 on request-app-form: `_, closed = press(s, typed("   ")...)` assigns closed and the next line overwrites it unchecked; drop the assignment or assert on it.
    - f3 nit at cmd/rhiza/tui.go:76 on request-app-form: isRequests keeps the old plural name for the request app (requestapp.Name is "request").
- qa (step review/review): passed after 2 cycles
  - cycle 1: failed, check session bb6de9d1-d993-40c5-bd5b-01a1aaa837a3 pass (said done), critic session a28d9d48-19f1-4cc7-be5c-01a1aab06ae6 pass (said done)
  - cycle 2: passed, check session 66d44bb0-0995-4256-9418-01a1aab575a7 pass (said done)
  - round 1 (cycle 1): 2 findings, 1 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/orchestration/daemon/plan-requests/requests-app.md:1: The intent says the change set retires the capabilities of the old requests app it replaces, but capability requests-app (01M6CS27Z) is not retired or proposed for retirement in this change set. It still describes a 'requests' app that lists requests and focuses planning tabs, and its acceptance names tui-requests-app.txtar, which this diff deletes; hands-on, `rhiza tui app requests` now exits 4 'unknown app'. — confirmed: The intent says the change set retires the old requests app's capabilities, yet none of its six log entries holds a retire write. requests-app (01M6CS27Z) is still live, and its acceptance cites tui-requests-app.txtar and requestsapp, which this diff deletes. The model now claims behaviour the code no longer has.
    - f2 nit at internal/tui/requestapp/requestapp.go:73 on request-app-form: Enter in the Request TextArea submits the form (seen in a pty), so a request cannot hold more than one line; with whitespace collapsed on submit this is harmless, but a single-line Text field would match the behaviour.
  - round 2 (cycle 2): no findings
- scope (step review/review): passed after 2 cycles
  - cycle 1: failed, check session 9e582fc7-bb41-4e0e-becf-01a1aaa8ce6e pass (said done), critic session ff8367e2-532d-41b2-ab0e-01a1aab0b5dd pass (said done)
  - cycle 2: passed, check session 0ed8f9f3-e0f9-4371-9af6-01a1aab5c423 pass (said done)
  - round 1 (cycle 1): 1 finding, 1 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/orchestration/daemon/plan-requests/requests-app.md:1: The intent says the change set retires the capabilities of the old requests app it replaces, but no write in the change set retires them: requests-app (01M6CS27ZCVXPWK3GXS8B8PQ2C, lists every request and focuses a planning run's tab) and requests-app-milestone (01M6JE40PG6Z1ZG27N7DMFH3FF, the entry's milestone field) remain live, retired=false, while their code (internal/tui/requestsapp, tui-requests-app.txtar) is deleted. The model now describes behaviour that no longer exists. — confirmed: The change set's intent names retiring the old requests app's capabilities, yet its log (.rhiza/log/01M6MYNDJ4HAJF028CEAE7SYQN, 6 entries) has no retire write and never mentions 01M6CS27Z or 01M6JE40P; rhiza show reports both live (retired=false) while the diff deletes internal/tui/requestsapp and tui-requests-app.txtar that their acceptance cites.
  - round 2 (cycle 2): no findings
- model (step review/review): passed after 2 cycles
  - cycle 1: failed, check session 23c08235-187f-4340-8043-01a1aaa97f4f pass (said done), critic session c3927b6f-1de6-4e76-aeea-01a1aab0fbe0 pass (said done)
  - cycle 2: passed, check session e065bbf3-6170-4980-8f67-01a1aab60c2c pass (said done)
  - round 1 (cycle 1): 3 findings, 2 confirmed
    - f1 major at .rhiza/rendered/capability/rhiza/orchestration/daemon/plan-requests/requests-app.md: The intent says this change set retires the capabilities of the old requests app, but its log (01M6MYNDJ4HAJF028CEAE7SYQN) has no retire op. requests-app (01M6CS27ZCVX) still claims behaviour the code removed: listing every request with its state, run and planned change set; focusing a planning run's tab on enter; `--once` JSON; tui-requests-app.txtar (now deleted); and the rhiza_app_requests action (now rhiza_app_request). Retire it in this change set. — confirmed: The change set's log has only node.create and link.create ops, no retire, while its intent says it retires the old requests app's capabilities. requests-app (01M6CS27ZCVX) is still live and claims listing requests, focus-on-enter, --once JSON, tui-requests-app.txtar and rhiza_app_requests, all of which the diff deletes (internal/tui/requestsapp/ and tui-requests-app.txtar removed; requestapp.go only files a request).
    - f2 major at .rhiza/rendered/capability/rhiza/orchestration/daemon/plan-requests/requests-app-milestone.md: requests-app-milestone (01M6JE40PG6Z) is still live but the new internal/tui/requestapp Form has no milestone field: RequestArgs never passes --milestone, and its acceptance names the deleted requestsapp unit test. The intent says to retire the old app's capabilities, so retire this one in this change set too (or, if a milestone field is still wanted, that belongs in a discovered-from change set). — confirmed: requests-app-milestone (01M6JE40PG6Z) is still live; internal/tui/requestapp/requestapp.go has no milestone-id field and never passes --milestone (only a 'milestone' kind option), and its acceptance names the deleted requestsapp unit test. The intent's retirement covers it, and no retire op exists in the change set.
    - f3 minor at .rhiza/log/01M6MYNDJ4HAJF028CEAE7SYQN/01M6MZBEKT8V10J0DDGS1HS75Q.json on request-app-form: request-app-form was created directly under the root capability rhiza, not beside the capabilities it replaces under orchestration/daemon/plan-requests (or a TUI apps area), so it sits outside the tree's areas.
  - round 2 (cycle 2): no findings

## Change-set fixes

- cycle 2 (step review/review): fixer session b898e0ca-1785-42f1-baff-01a1aab2b9fd: pass, commit 1bd20b12dd92 (said done)

## Code checks

- step review/code: pass

## Sign-offs

- signoff (visit 1): approved by rule autonomous

## Sessions

- build/build, session 47536e0d-ecb2-4d79-90c3-01a1aaa067ba: tokens input 32, output 8853, cache creation 66351, cache read 1128432; helper tokens input 0, output 0, cache creation 0, cache read 0
- build/build, session de725362-9a10-49a7-a2d8-01a1aaa3a145: tokens input 14, output 2178, cache creation 30146, cache read 357565; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 9e5a01fb-0da2-4890-9cfd-01a1aaa7b373: tokens input 20, output 2495, cache creation 34950, cache read 542261; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 78a348d9-024d-45b4-9897-01a1aaa7ee58: tokens input 22, output 3930, cache creation 45200, cache read 670483; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session bb6de9d1-d993-40c5-bd5b-01a1aaa837a3: tokens input 50, output 9122, cache creation 49434, cache read 1488101; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 9e582fc7-bb41-4e0e-becf-01a1aaa8ce6e: tokens input 16, output 2290, cache creation 34958, cache read 443375; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 23c08235-187f-4340-8043-01a1aaa97f4f: tokens input 18, output 2895, cache creation 39671, cache read 512972; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session d0332afb-a938-480d-ade5-01a1aab01e84: tokens input 18, output 3137, cache creation 29403, cache read 442477; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session a28d9d48-19f1-4cc7-be5c-01a1aab06ae6: tokens input 14, output 1754, cache creation 23780, cache read 332377; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session ff8367e2-532d-41b2-ab0e-01a1aab0b5dd: tokens input 14, output 1913, cache creation 27915, cache read 347788; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session c3927b6f-1de6-4e76-aeea-01a1aab0fbe0: tokens input 14, output 2191, cache creation 28119, cache read 343034; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session b898e0ca-1785-42f1-baff-01a1aab2b9fd: tokens input 16, output 2427, cache creation 27035, cache read 400585; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 73959455-84eb-44c4-92d4-01a1aab54863: tokens input 14, output 1765, cache creation 32329, cache read 372421; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 66d44bb0-0995-4256-9418-01a1aab575a7: tokens input 24, output 4971, cache creation 39040, cache read 707918; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session 0ed8f9f3-e0f9-4371-9af6-01a1aab5c423: tokens input 14, output 1834, cache creation 39278, cache read 382753; helper tokens input 0, output 0, cache creation 0, cache read 0
- review/review, session e065bbf3-6170-4980-8f67-01a1aab60c2c: tokens input 22, output 2995, cache creation 39044, cache read 637071; helper tokens input 0, output 0, cache creation 0, cache read 0

Totals: tokens input 322, output 54750, cache creation 586653, cache read 9109613; helper tokens input 0, output 0, cache creation 0, cache read 0