chore: configure centralized clippy lints

[bug-ops]

Summary

• Configure centralized clippy lints via [workspace.lints]
• Enable all major lint groups: clippy::all, clippy::pedantic, clippy::nursery, clippy::cargo
• Forbid unsafe_code at workspace level
• Apply clippy --fix for auto-fixable issues
• Allow noisy lints for incremental improvement

Changes

• Cargo.toml: Add [workspace.lints.rust] and [workspace.lints.clippy]
• All crates: Add [lints] workspace = true for inheritance
• 56 files: Auto-fixed clippy warnings (format args, iter loops, etc.)

Fixed Issues

1. ref_option in npm parser - changed &Option<T> to Option<&T>
2. unnecessary_literal_bound in tests - changed &str to &'static str

Test plan

• cargo clippy --workspace --all-targets --all-features -- -D warnings passes
• CI passes

[codecov-commenter]

Codecov Report

❌ Patch coverage is 71.21212% with 76 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
crates/deps-cargo/src/error.rs	10.52%	17 Missing ⚠️
crates/deps-npm/src/error.rs	11.76%	15 Missing ⚠️
crates/deps-go/src/error.rs	41.17%	10 Missing ⚠️
crates/deps-go/src/registry.rs	53.84%	6 Missing ⚠️
crates/deps-lsp/src/document/state.rs	83.33%	6 Missing ⚠️
crates/deps-lsp/src/server.rs	0.00%	4 Missing ⚠️
crates/deps-go/src/version.rs	50.00%	3 Missing ⚠️
crates/deps-cargo/src/ecosystem.rs	0.00%	2 Missing ⚠️
crates/deps-core/src/cache.rs	66.66%	2 Missing ⚠️
crates/deps-lsp/src/document/lifecycle.rs	60.00%	2 Missing ⚠️
... and 9 more

@@            Coverage Diff             @@
##             main      #43      +/-   ##
==========================================
+ Coverage   85.66%   85.73%   +0.07%     
==========================================
  Files          55       55              
  Lines       14664    14642      -22     
==========================================
- Hits        12562    12554       -8     
+ Misses       2102     2088      -14     

Flag	Coverage Δ
deps-cargo	79.31% <46.15%> (+0.13%)	⬆️
deps-core	90.99% <62.50%> (+0.05%)	⬆️
deps-go	85.73% <71.21%> (+0.07%)	⬆️
deps-lsp	79.54% <82.79%> (+0.10%)	⬆️
deps-npm	89.55% <37.50%> (+0.12%)	⬆️
deps-pypi	86.69% <93.10%> (-0.02%)	⬇️
overall	85.73% <71.21%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
crates/deps-cargo/src/formatter.rs	100.00% <100.00%> (ø)
crates/deps-cargo/src/lockfile.rs	91.17% <100.00%> (ø)
crates/deps-cargo/src/registry.rs	80.46% <100.00%> (ø)
crates/deps-cargo/src/types.rs	72.82% <ø> (ø)
crates/deps-core/src/completion.rs	95.22% <100.00%> (ø)
crates/deps-go/src/ecosystem.rs	82.96% <100.00%> (ø)
crates/deps-go/src/formatter.rs	100.00% <100.00%> (ø)
crates/deps-go/src/lockfile.rs	97.60% <100.00%> (ø)
crates/deps-go/src/parser.rs	95.51% <100.00%> (+0.02%)	⬆️
crates/deps-go/src/types.rs	82.50% <ø> (ø)
... and 32 more

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