[asimawdah]

UPM's Node.js dependency detection uses nodejsGuessRegexps to determine whether the bare-import scan should run. The existing pattern recognized module specifiers enclosed in single or double quotes, but did not recognize backtick-delimited template literals.

For example:

const pkg = require(`some-package`);
const pkg = import(`some-package`);

If a project referenced its dependencies only through this syntax, the initial import detection could return no matches. Since GuessWithCache may skip the bare-import scan when no imports are detected, the dependency could be missed entirely.

What changed

• Support backtick-delimited imports: Extend the regex for require(...) and dynamic import(...) calls to recognize static module specifiers enclosed in backticks, in addition to single and double quotes.
• Preserve static dependency detection: Continue excluding template literals containing expressions, such as require(\pkg-${version}`)`, because their module names cannot be determined statically.
• Add regression tests: Cover regular string literals, backtick-delimited imports, scoped packages, interpolated templates, and unrelated template literals.
• Test the complete detection flow: Add regression coverage for both NodejsNPMBackend.Guess and store.GuessWithCache, ensuring that a dependency referenced through backticks is detected even when it is the project's only dependency.
• Keep the tree-sitter query unchanged: It already supports backtick-delimited call arguments, so the fix is limited to the regex-based detection gate.

Test plan

The added regression tests cover the following scenarios:

• TestNodejsGuessRegexps — verifies supported import syntaxes and ensures interpolated templates are not treated as static dependencies.
• TestNodejsGuessBacktickImports — verifies that the Node.js backend detects a dependency referenced through a backtick-delimited require() call.
• TestNodejsGuessWithCacheBacktickImports — verifies that the dependency remains detectable through the cached guessing flow when it is the project's only dependency.