feat(profile): structured sections for skills, experience, projects, and education

[leobrqz]

Summary

Extend the Profile page with additional structured sections below the existing preset/custom profile entries. Each section supports multiple user-defined entries with typed subfields, editing, reordering, and copy-friendly presentation for reuse in applications.

The current profile models short key-value style data well but not CV-style blocks (employment history, education, grouped skills). Job seekers need reusable, structured narratives that stay editable and easy to copy into external forms.

Proposed behavior

• New sections (e.g. Experience, Education, Projects, Skills) appear as distinct cards or regions under the current profile content.
• Experience-style entries support fields such as job title, company, date range, seniority, compensation (optional), summary, and a list of bullet points (each bullet is its own editable line).
• Skills support user-named subgroups (e.g. “Backend”) with free text or tag-like content under each group; groups and items are add/remove/rename capable.
• Education and projects follow the same pattern: defined subfields per entry, lists where needed, optional descriptions.
• All blocks are editable in place, reorderable within their section, and presented in a layout that is easy to scan and to copy (e.g. plain-text or structured export later can build on this).

Scope notes

• First version prioritizes data model clarity and UX for add/edit/reorder/copy; deep formatting (rich text, PDF export) can follow.
• Sections should not duplicate the entire resume file concept; they complement resumes as structured data the app can reuse elsewhere later.

Success criteria

• User can maintain at least one full employment history entry and one skills grouping without leaving the profile area.
• Bullets and subsections behave as independent editable units.
• Empty sections degrade gracefully (hide or show helpful empty state).