merge(v0.4.2): clips+tts 质量审 + 4 fix · 3 tts 正确性 bug 修 + clips 测试补

session: 0912b6e2-1f27-49c4-8c92-a0d6005cb314

12 ally 并发审查(clips D1-D6 + tts D1-D6) → 9 P0 + 38 P1 → 修 4(tts cache key/WS timeout/Volcengine uuid + clips hermetic tests) · 延 2 P0 ADR.

- 11 文件 · 602+ / 41-
- cargo test: 87 passed 0 failed(across 8 binaries)
- cargo clippy --workspace 绿

延 v0.5+ ADR:
- clips-D6-1 transcribe Python helper 冷启动(large-v3 OOM 风险)
- clips-D6-2 sentences.json 内存倍增(Word 多次 clone)

Co-Authored-By: Claude Opus 4.7

Author: claude

Cargo.lock

@@ -18,5 +18,8 @@ videocut-transcribe = { path = "../videocut-transcribe" }
 videocut-align = { path = "../videocut-align" }
 videocut-cut = { path = "../videocut-cut" }
 
+[dev-dependencies]
+tempfile = "3.15"
+
 [lints]
 workspace = true

crates/nf-source/Cargo.toml

@@ -1,7 +1,7 @@
-use anyhow::Result;
+use anyhow::{bail, Result};
 use serde_json::to_string;
 use videocut_core::CutReport;
-use videocut_cut::{CutOptions, cut_plan};
+use videocut_cut::{cut_plan, CutOptions};
 
 use crate::cli::CutArgs;
 
@@ -24,6 +24,9 @@ pub fn run(args: CutArgs) -> Result<()> {
 
     report.write_to_path(&report_path)?;
     print_summary(&report);
+    if !report.failed.is_empty() {
+        bail!("cut failed for {} clip(s)", report.failed.len());
+    }
     Ok(())
 }