Strategic Refactor: Establish Persona-Based Documentation Paths

Problem Statement: Currently, the AboutCode documentation is structured primarily around tool functionality. However, our ongoing research into User Roles (see PR #249) indicates that our audience is split between highly technical developers, legal compliance officers, and security researchers. Each of these groups has different "information hunger" and entry points.

Proposal: Conduct a comprehensive audit of the existing documentation to map current content against the newly defined personas:

- Legal/Compliance: High-level summaries, license policy guides, and reporting features.
- Security/SCA: Vulnerability database integration and scanning workflows.
- Dev/Integrators: CLI usage, API documentation, and CI/CD pipeline integration.

- Goals:
- Identify Gaps: Determine which roles are currently underserved by the documentation.
- Navigation Overhaul: Propose a "Choose Your Own Adventure" style landing page for docs.aboutcode.org.
- Language Consistency: Ensure that non-technical roles aren't hit with jargon in the introductory sections.

- Acceptance Criteria:
- [ ] A spreadsheet or map of existing .rst/.md files tagged by target persona.
- [ ] A proposed new Site Map for the Sphinx documentation.
- [ ] A "User Journey" document for at least two primary roles (e.g., a first-time Compliance Officer vs. a Senior DevOps Engineer).

- Additional Context: This issue will directly consume the results of the Slack poll initiated in #249 to ensure the reorganization is data-driven.