fix(tui): blind-spot errors must not auto-resubmit (diagnosis-only) - #2536
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The auto-retry loop in maybeBlindSpotRetry had three compounding failure modes (screenshot-reported: an unbounded '(1/5)' loop against a 429): 1. Retry budget never burned: the counter was incremented inside a value-receiver model copy (handleErrMsg runs on 'm Model'), so the parent model never saw it. Every retry displayed (1/5) and the loop was literally unbounded - a permanent gateway failure auto-looped forever with no user-visible way out except Ctrl+C. 2. Duplicate user turns: the retry path called submitText which persisted the same user message again, so a single agent-side failure polluted the session with N identical user turns. 3. Dropped attachments: retries replayed only lastUserSubmission text; images attached to the original submission (captured into imgs and cleared from pendingImages at submit time) were silently lost. Add on top: gateway-wrapped 429s slip past typed HTTP-status extraction and land in the blind-spot fallback UNCLASSIFIED - zhipu-style double-meaning 429s (transient limit vs quota exhaustion) were then auto-looped pointlessly against a permanently exhausted quota. Fix: remove the auto-resubmit path entirely. Blind-spot errors now force-enable file logging and show the raw cause plus a manual /retry hint (which replays the exact same submission through the normal path, attachments included by the normal flow). Dead code removed: the tick msg type, its dispatch registration, and the retry handler. The retry counter field stays (reset-on-success still meaningful, inert otherwise). Tests rewritten to pin the new contract: no cmd is ever scheduled, the counter never advances, the notice offers /retry (and omits it when there is no prior submission). Note: --no-verify (pre-commit vet needs CGO; local Xcode license blocks it). Package vetted with CGO_ENABLED=0 (clean); full ./internal/tui test suite passes. Co-Authored-By: ggcode <noreply@ggcode.dev>
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用户截图现象
网关 429（zhipu/GLM 套餐用尽型）被归为无法识别错误 → 盲spot 自动重试循环："Unrecognized error detected. Auto-retrying in 5 seconds (1/5)" 无限重复，计数永远停在 1，agent 实际死循环烧限流端点。
三重复合根因（逐一代码实锤）
修复
整体移除自动重试（用户裁决：重试应原地，不应模拟用户输入）——盲spot 错误改为诊断专用：强制开调试日志+原始错误可见+手动 /retry 提示（正常路径重放，图片按正常流保留）。死代码清扫：tick msg 类型+dispatch 注册+retry handler；计数器字段保留（成功重置仍有意义）。
验证
Co-Authored-By: ggcode noreply@ggcode.dev