feat: tailored CVs follow my own CV's design and structure

[coderback]

Summary

Tailored CVs now follow the design and structure of my own CV (Timothy_Ojebiyi_CV.pdf). That also fixes graduate CVs running onto a second page since the fuller persona.

Layout (classic_cv.html, base.css)

Measured from my CV and reproduced:

• Type: Cambria. The image and CI install Caladea, its metric-compatible twin.
• Header: a 25.8pt name, then a 9pt grey contact line with blue underlined links (email, LinkedIn, GitHub, Website). The phone is plain text.
• Headings: 13.2pt bold, sentence case, over a light grey rule.
• Body: 10.2pt. Dates are 9pt grey on a tab stop about 16mm inside the right margin.
• Bullets: Word-style, with the bullet at 0.25in and the text at 0.5in.
• Projects: titled "Name · context", with the context in grey and a grey "Technologies:" line underneath.
• Sections: Professional Summary, Education (certifications listed there), Experience, Projects, Skills & Technical Proficiency. Roles show no location and projects no links, as in the design.
• Page: a named @page cv with my CV's margins, so the cover letter keeps its own layout.

Structure (agent.py)

• Prompt budgets, from my CV:
  • a summary of about 55 words;
  • 1–2 bullets per role, at most about 60 words per role;
  • 4 projects as 40–55-word paragraphs;
  • 20–30 skills chosen for the job, in up to 5 rows of no more than 8.
• Skills (_chosen_skills): only the profile's own skills are kept. Anything the model invents, renames or repeats is dropped, and an unnamed row becomes "Other". With fewer than 10 real skills left, or more than 40, the profile's full list is used. This replaces fix: every skill reaches the CV, and a graduate CV fits on one page #19's "every skill on every CV": my CV selects skills.
• Taken from the profile, never the model: contact details, education, certifications and role dates (_restore_role_dates). The header shows "City, Country" (_cv_location).
• _FIT_STEPS unchanged: a CV that still runs over tightens, then trims, as before.

Testing

• The full API suite passes (658). All 52 document tests pass in the API image, including a check of the rendered PDF against my CV's measurements: the Caladea font, 25.8 / 13.2 / 10.2 / 9pt sizes and colours.
• New tests cover:
  • the section order and the contact line;
  • dates beside entries, and certifications under Education;
  • project titles with their context, and the technologies line;
  • the skill choice: invented, renamed or repeated skills dropped, too few or too many falling back;
  • role dates kept from the profile, and city plus country in the header.
• Real tailored CVs for my profile, made with Azure for three Cambridge Consultants roles, each fit on one page with the technologies lines kept:

Role	Skills	Fit
Software Engineer, Healthcare	24	One page as written
Cloud Software Engineer	30	One page with tighter spacing
AI Engineer	30	One page with tighter spacing