fix(rg): count unrestricted flags independently

[chaliy]

Motivation

• Fix correctness regression where -u/--unrestricted advanced behavior by inspecting current no_ignore/hidden booleans, causing explicit --no-ignore/--hidden flags to incorrectly consume unrestricted levels and producing order-dependent semantics.

Description

• Add a new unrestricted_level: u8 field to RgOptions and initialize it in RgOptions::parse so unrestricted usage is tracked independently of explicit flags.
• Replace apply_unrestricted() logic to increment unrestricted_level and map levels 1 => no_ignore, 2 => hidden, >=3 => binary to match ripgrep semantics regardless of flag order.
• Add two regression differential tests to rg test cases to cover --no-ignore -u and --hidden -uu so explicit flags do not advance unrestricted levels.
• Commit message: fix(rg): count unrestricted flags independently.

Testing

• Ran the focused test with cargo test -p bashkit rg::tests::rg_real_diff_unrestricted -- --nocapture, and the test completed successfully.

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	bashkit	b8a67bf	Commit Preview URL	May 25 2026, 02:42 AM