feat(mimo): add ai-mimo launcher for Xiaomi MiMo V2.6 Pro

ai-mimo runs Claude Code through Xiaomi's Anthropic-compatible API
(Token Plan or pay-as-you-go). The key's endpoint is found by probing
token-plan-sgp, token-plan-ams and api.xiaomimimo.com (a key only works
in its own region) and is saved to mimo_base_url; MIMO_BASE_URL
overrides. Unreachable endpoints are skipped, token-plan-cn is left out
of the probe since it times out from our network, and a 402 on the
pay-as-you-go endpoint explains that a tp- Token Plan key is needed.

Always the smartest model: mimo-v2.6-pro in every slot and for
subagents, --model opus and --effort max on each start, 128000 output
tokens (Claude Code's ceiling), real 1M context window. Measured on
13.10: MiMo ignores output_config.effort (even "bogus" is accepted, no
length trend from low to max) and treats thinking adaptive like
enabled, so reasoning is always on; EFFORT_MAPPING.md records this.

/logout-mimo is registered as a command and handled by the logout hook
(removes mimo_key and mimo_base_url). setup.sh status, statusline brand
color, README, QUICK_START and AGENTS.md list the new launcher.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

QUICK_START.md

@@ -7,7 +7,7 @@ bash setup.sh
 ```
 
 Установит лаунчеры
-`ai-claude`, `ai-gpt`, `ai-deepseek`, `ai-kimi`, `ai-glm`, `ai-eltex`, `ai-eltex-qwen`, `ai-openrouter`, `ai-opencode`, `ai-gemini`, `ai-cursor`
+`ai-claude`, `ai-gpt`, `ai-deepseek`, `ai-kimi`, `ai-glm`, `ai-eltex`, `ai-eltex-qwen`, `ai-mimo`, `ai-openrouter`, `ai-opencode`, `ai-gemini`, `ai-cursor`
 в `~/bin`, если он уже есть в `PATH`, иначе в `~/.local/bin/`, и запишет API-ключи.
 
 После установки, если команды не видны: