fix: stop sw on context cancel (search err)

[cheb0]

Description

Spot warning logs while debugging an issue - stopwatch not stopped on search error.

{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.539Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"warn","ts":"2026-07-13T18:22:26.540Z","message":"wrong Stopwatch usage: call getValues() w/o Stop()","name":"total"}
{"level":"error","ts":"2026-07-13T18:22:26.543Z","message":"search error","error":"search error: context canceled field: exception, query: 2","request":{"query":"...}}

---

• I have read and followed all requirements in CONTRIBUTING.md;
• I used LLM/AI assistance to make this pull request;

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.48%. Comparing base (42fb1c0) to head (b47d0eb).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #467      +/-   ##
==========================================
+ Coverage   70.47%   70.48%   +0.01%     
==========================================
  Files         232      232              
  Lines       18364    18364              
==========================================
+ Hits        12942    12944       +2     
+ Misses       4448     4446       -2     
  Partials      974      974              

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[github-actions]

🔴 Performance Degradation

Some benchmarks have degraded compared to the previous run.
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Name	Previous	Current	Ratio	Verdict
Indexer-4	42fb1c	55f552
	572784732.00 B/op	735154074.00 B/op	1.28	🔴