Add CV source, dated PDF archive, gitignore, and CLAUDE.md

Imports the existing local CV archive: the master ODT
(gilestro_CV_full.odt), the dated PDF exports under PDFs/
(2021-12 through 2025-10), a .gitignore for LibreOffice
lock/autosave files, and a CLAUDE.md describing the layout
and the LibreOffice headless export workflow.

.gitignore

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+# LibreOffice lock files
+.~lock.*#
+
+# Backup / autosave
+*.bak
+.~*

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## What this directory is
+
+This is **not** a code repository. It is a personal CV archive for Giorgio Gilestro, containing:
+
+- `gilestro_CV_full.odt` — the single master/editable source of the CV (OpenDocument Text, edited in LibreOffice).
+- `PDFs/` — dated, immutable PDF exports of the CV over time.
+
+There is no build system, no tests, and no dependencies here. The global `~/.claude/CLAUDE.md` rules about Python/venv/pytest/PLANNING.md/tasks/ do not apply in this directory.
+
+This directory syncs with the git remote **https://git.lab.gilest.ro/giorgio/myCV.git** (Giorgio's self-hosted Gitea). Per Giorgio's preference, the primary branch is **`master`**, not `main`. Never push without an explicit instruction.
+
+## PDF naming convention
+
+Exported PDFs follow `gilestro_CV_YYYYMM.pdf` (e.g. `gilestro_CV_202510.pdf` for the October 2025 export). When producing a new export, use the current year+month — do not overwrite a prior month's file.
+
+## Common operations
+
+- **Export ODT → PDF** (headless, writes alongside the source):
+  ```
+  libreoffice --headless --convert-to pdf gilestro_CV_full.odt --outdir PDFs/
+  ```
+  Then rename the output to `gilestro_CV_YYYYMM.pdf`. The headless converter always writes `gilestro_CV_full.pdf`, so a rename step is required.
+
+- **Read the current CV contents** without opening LibreOffice:
+  ```
+  unzip -p gilestro_CV_full.odt content.xml | sed 's/<[^>]*>/ /g' | tr -s ' '
+  ```
+  Useful when the user asks questions about CV content (publications, positions, dates) — the ODT is a zip; `content.xml` holds the text.
+
+- **Open for editing**: `libreoffice --writer gilestro_CV_full.odt`
+
+## Working rules specific to this directory
+
+- **Never edit the `.odt` directly via binary/text tools.** It is a zipped XML bundle; hand-edits will corrupt it. Defer ODT edits to the user (in LibreOffice) unless explicitly asked to script a change via `python-docx`-style tooling against `content.xml`.
+- **Never delete or overwrite existing dated PDFs in `PDFs/`** — they are the historical record.
+- Treat the most recent PDF in `PDFs/` (by filename date) as the last "published" snapshot when comparing against the current ODT.