fix: update import paths for utils

[heymaaz]

Summary

The fix addresses both issues:
Issue #8648: Components have /lib/utils hardcoded
Problem: Components get /lib/utils instead of the configured /app/function/lib/utils.
Fix: When a user configures an absolute path ending with /lib/utils (e.g., /app/function/lib/utils), it is preserved.

Issue #7348/#7557: Components default to src/lib/utils instead of src/utils
Problem: Setting "utils": "src/utils" still produces src/lib/utils.
Fix: When the alias doesn't end with /utils, /utils is appended. For relative paths like @/lib/utils or paths without explicit /lib/utils, /lib/utils is replaced with /src/utils.

Behavior

Detects both @/lib/utils and @/src/utils imports.

Uses the configured utils alias from components.json.

Preserves absolute paths: if you configure /app/function/lib/utils, it keeps that path.

Defaults to /src/utils: for relative/alias paths, replaces /lib/utils with /src/utils.

Handles sub-path imports: @/lib/utils/bar and @/src/utils/bar are supported.

Handles re-exports: detects cn in export statements.

All tests pass.

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