Apollo Angular HTTP Link Common Logic (Internal)

This package, `apollo-angular-link-http-common` at version 1.10.0, provides shared, internal logic specifically for HTTP links within the broader `apollo-angular` ecosystem. It is explicitly marked as "for internal use only" in its README and documentation, advising developers "DO NOT USE DIRECTLY" in their applications. As such, it does not offer a public API intended for direct consumption. Its primary role is to encapsulate common functionalities leveraged by other `apollo-angular` link implementations, ensuring consistency and reducing code duplication across the library. The `apollo-angular` library, which this package supports, generally follows Angular's major release cycle, implying that this internal package's stability and compatibility are tied to `apollo-angular`'s roadmap and its underlying `@apollo/client` dependencies. It ships with TypeScript types to facilitate its internal integration within the `apollo-angular` monorepo.