* fix(sandbox): search long lines for literal grep patterns
* test(sandbox): cover literal long lines across providers
* fix(sandbox): bound case-insensitive literal grep work
Replace repeated-prefix regex searches with KMP over single-character Unicode case matches. Keep local long-line literal results and existing regex and preview limits. Add a subprocess-deadline regression for the review counterexample and case-semantics coverage.
* docs(sandbox): keep grep guidance within inherited size limit
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Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
E2BSandbox.grep() applied re.escape() to the caller's pattern and then
handed the escaped text to grep -F. Fixed-string grep treats the added
backslashes as part of the text to find, so an exact literal such as
'alpha.beta' never matched. Align with the boxlite/tenki/opensandbox
seams: grep receives the RAW pattern (-F matches it literally, -E as a
regex), and only a non-literal pattern is compile-validated locally.
A shared-contract regression covers dot/space/bracket/backslash/plus
literals through every shell-backed provider.
* fix(sandbox): scope ignore patterns to the search root in glob/grep
Rebuilt on top of current main so the changelog entry lands in the
Unreleased (2.2.0) Fixed section rather than the now-released 2.1.0 block.
* test(sandbox): cover the include_dirs glob branch at an ignored search root
The file.list_path branch only ran against a non-ignored tree, so a
regression there would go unnoticed. Two cases now exercise it with an
ignored root: the requested root keeps its contents, and ignored
descendants stay hidden.
* test(sandbox): share search contracts across providers
* test(sandbox): make search provider groups explicit
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Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
