Kiro CLI --v3: clipboard paste broken, context limit kills session, compaction hangs

### Checks

- [x] I have searched [github.com/aws/amazon-q-developer-cli/issues](https://github.com/aws/amazon-q-developer-cli/issues?q=) and there are no duplicates of my issue
- [x] I have run `q doctor` in the affected terminal session
- [x] I have run `q restart` and replicated the issue again

### Operating system

Linux 6.17.0-35-generic - Ubuntu 24.04.4 LTS

### Expected behaviour

1. Ctrl+V / /paste inserts image from clipboard (works fine without --v3)
2. When context limit is reached — ability to save/export transcript before session ends
3. Compaction doesn't hang CLI, can be interrupted
4. Text color in --v3 UI should have sufficient contrast for readability

### Actual behaviour

1. --v3: Ctrl+V and /paste → "No image in clipboard". Without --v3 — works. 100% reproducible.
2. ~60% context usage → agent refuses to work, demands new session. No way to save history.
3. Auto-compaction → CLI hangs, unresponsive to Ctrl+C, have to kill process.
4. --v3 UI text color has very poor contrast (gray on dark background) — hard to read.

### Steps to reproduce

1. Copy screenshot to clipboard → kiro-cli --v3 → Ctrl+V or /paste → "No image in clipboard"
Then exit, run kiro-cli (without --v3) → Ctrl+V → image pastes fine
2. Work in --v3 session until ~60% context → agent refuses to continue
3. Work until auto-compaction triggers → CLI becomes unresponsive
4. Launch kiro-cli --v3 → observe low contrast text color in the UI

### Environment

```yaml
[q-details]
version = "2.10.0"
hash = "a5da029503141c8033a11d7ee6569583d915cd90"
date = "2026-06-25T20:04:08.842604Z"
variant = "minimal"

[system-info]
chip = "Intel(R) Core(TM) Ultra 7 155H"
total-cores = 16
memory = "62.26 GB"

[system-info.os.linux]
kernel_version = "6.17.0-35-generic"
id = "ubuntu"
name = "Ubuntu"
pretty_name = "Ubuntu 24.04.4 LTS"
version_id = "24.04"
version = "24.04.4 LTS (Noble Numbat)"

[environment]
cwd = "$HOME"
cli-path = "$HOME"
os = "Linux"
shell-path = "$HOME/.local/share/kiro-cli/node"
install-method = "unknown"

[env-vars]
DISPLAY = ":1"
PATH = "$HOME/maven/default/bin:$HOME/.local/lib/nodejs/default-nodejs/bin:$HOME/.npm-global/bin:$HOME/jvm/default-java/bin:$HOME/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/opt/puppetlabs/bin:$HOME/.local/bin"
QT_IM_MODULE = "ibus"
Q_SET_PARENT_CHECK = "1"
SHELL = "/bin/bash"
TERM = "xterm-256color"
XDG_CURRENT_DESKTOP = "ubuntu:GNOME"
XDG_SESSION_DESKTOP = "ubuntu"
XDG_SESSION_TYPE = "x11"
XMODIFIERS = "@im=ibus"
```

Inizia riproducendo ciascuno dei quattro malfunzionamenti con kiro-cli --v3 nell’ambiente Ubuntu segnalato, confronta il comportamento degli appunti con quello del comando non-v3 e registra in quale punto il rifiuto relativo al contesto, la compattazione o il rendering diventano inutilizzabili. Il lavoro sarà considerato completato quando saranno verificati separatamente l’incolla delle immagini, la conservazione della trascrizione al limite del contesto, la compattazione interrompibile e un testo dell’interfaccia leggibile.

Scritto dal modello di indicizzazione a partire dal testo della issue.