fix(cli): preserve resize renderer state

[teknium1]

Summary

Classic CLI resize recovery now preserves prompt_toolkit's live cursor cache before resize erases, preventing duplicated prompt/input artifacts while keeping CJK-aware input-height calculation shared and tested.

Changes

• cli.py: run prompt_toolkit's original resize handler before any Hermes renderer reset/invalidate so renderer.erase() can clear from the correct prompt origin.
• cli.py: extract _estimate_tui_input_height() so prompt width is counted only on logical line 0 and CJK/wide characters use terminal cell width.
• tests/cli: replace duplicated test-local input-height code with direct invariant tests for the shared helper and resize call order.

Related reports / PRs

• Salvages contributor work from fix(cli): preserve resize renderer state #33649 by @H-Ali13381 with authorship preserved.
• Addresses the open classic CLI resize/input artifact cluster around [Bug]: CLI resize recovery truncates history, replays input text #26316 and overlaps the visual duplication symptoms in Terminal UI: input field accumulates/duplicates when terminal window loses focus (Wayland + niri + Kitty) #31962/[Bug]: After resizing terminal, (Chinese) characters are always duplicated automatically in input field #38234/Bug: typing Korean leaves last syllable in input #38117.
• Leaves the separate Ink TUI stabilization work in fix(tui): stabilize resize and IME rendering #30775 untouched.

Validation

Check	Result
python3 -m py_compile cli.py	pass
scripts/run_tests.sh tests/cli/test_cli_force_redraw.py tests/cli/test_cli_status_bar.py tests/cli/test_cli_terminal_response_sanitizer.py	70 passed, 0 failed

Infographic

[github-actions]

🔎 Lint report: hermes/hermes-28a95171 vs origin/main

ruff

Total: 0 on HEAD, 0 on base (➖ 0)

🆕 New issues: none

✅ Fixed issues: none

Unchanged: 0 pre-existing issues carried over.

ty (type checker)

Total: 10887 on HEAD, 10889 on base (✅ -2)

🆕 New issues (2):

Rule	Count
unresolved-attribute	2

First entries

tests/run_agent/test_credits_notices_toggle.py:76: [unresolved-attribute] unresolved-attribute: Unresolved attribute `_credits_session_start_micros` on type `AIAgent`
run_agent.py:2891: [unresolved-attribute] unresolved-attribute: Object of type `Self@get_credits_spent_micros` has no attribute `_credits_session_start_micros`

✅ Fixed issues (3):

Rule	Count
unresolved-import	2
invalid-assignment	1

First entries

tests/run_agent/test_credits_notices_toggle.py:76: [invalid-assignment] invalid-assignment: Object of type `None` is not assignable to attribute `_credits_session_start_micros` of type `int`
tests/cli/test_cli_status_bar.py:163: [unresolved-import] unresolved-import: Cannot resolve imported module `prompt_toolkit.utils`
tests/cli/test_cli_status_bar.py:162: [unresolved-import] unresolved-import: Cannot resolve imported module `prompt_toolkit.application`

Unchanged: 5709 pre-existing issues carried over.

Diagnostics are surfaced as warnings — this check never fails the build.