Update JoelVelasqueZz participant file with progress

[JoelVelasqueZz]

Updated participant file with:

• Blog post link
• Completed tasks checklist
• Added stack and Wagtail/Django tutorial progress

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[JoelVelasqueZz]

Updated participant file with research notes from local news-template setup:

• Confirmed silent dependency downgrade: Wagtail 7.3.1 → 6.4.2, Django 5.2.12 → 5.1.15
• Confirmed dependency conflict: modelsearch 1.2 incompatible with django-tasks 0.6.1
• Confirmed 32 npm vulnerabilities on fresh install (5 low, 10 moderate, 17 high)

These findings are reflected in my GSoC proposal for the Starter Kit Upgrade project.

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[thibaudcolas]

Good progress — nice research notes on dependency issues.