Add Aptitude package-management module referencing Ubuntu Determinant source

Author: mearvk

modules/aptitude/README.md

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+# Aptitude Module
+
+The JWSTF Aptitude module is the Linux package-management integration for the Ubuntu Grand / US House software lifecycle.
+
+## Reference source
+
+The module references the Aptitude-related source and project conventions in:
+
+`https://github.com/mearvk/Ubuntu.Determinant.Beta.Restricted`
+
+The source repository is treated as the upstream project reference; this repository does not copy or claim ownership of unrelated Aptitude source code.
+
+## Purpose
+
+Aptitude provides a controlled interface for Debian/Ubuntu package discovery and lifecycle operations. It is the preferred package-management adapter when the host is Debian/Ubuntu and `aptitude` is available.
+
+The module exposes the common JWSTF lifecycle:
+
+```text
+install → update → verify → remove
+```
+
+and supports:
+
+- package search
+- package installation
+- package update
+- package removal
+- package status / verification
+- dependency-aware planning
+- dry-run/review before material changes
+- provenance capture for package name, version, repository, and operation
+- integration with the graphical installer
+- `/user` and `/deck` deployment profiles without overriding Debian filesystem conventions
+
+## Safety model
+
+The adapter must prefer the native package manager over downloading arbitrary `.deb` files. Persistent or destructive operations must be visible to the caller and require the normal authorization available to the host environment.
+
+`remove` means package-managed removal. It does not delete source repositories or unrelated user data unless the native package operation explicitly defines that behavior and the user authorizes it.
+
+## Tomcat / Apache relationship
+
+For Debian/Ubuntu hosts, Aptitude should be used when installing distribution-managed Apache or Tomcat packages. In that case their normal locations and service units remain authoritative, for example:
+
+- Apache configuration: `/etc/apache2`
+- Apache document root: `/var/www/html`
+- Apache logs: `/var/log/apache2`
+- Tomcat configuration: `/etc/tomcat10`
+- Tomcat state: `/var/lib/tomcat10`
+
+A manually managed Tomcat installation under `/opt/tomcat` is a separate deployment mode and must not be mixed with the package-managed Tomcat tree.
+
+## Integration contract
+
+The JavaFX installer can call this module for Debian/Ubuntu operations while displaying the proposed package changes first. Verification should report the installed version and package-management state after each operation.