feat: finish production readiness issues

[ubugeeei]

Summary

• Finish the remaining production-readiness issues across core decoding, image decoding, NAPI/WASM/browser APIs, packaging, and Vue typings.
• Add Reed-Solomon correction during decode, harden image limits/error propagation/perspective sampling, align JS option objects, and validate platform-tagged native/browser package artifacts.
• Add Vue declaration output and package smoke checks so downstream consumers get stable types.

Verification

• cargo test -p fastqr-core
• cargo test -p fastqr-image
• cargo test --workspace
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• vp run fastqr#check
• vp run @fastqr/vue#check
• vp run fastqr#build && vp run fastqr#pack-smoke
• vp run @fastqr/vue#build && vp run @fastqr/vue#pack-smoke
• vp run workspace:build
• cargo bench -p fastqr-image --bench decode
• vp run ci
• git diff --check

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