Resolve analytics video and playlist titles

[jdwit]

Summary

• add a --resolve flag to analytics query
• hydrate video/playlist dimensions with batched Data API snippet lookups
• include videoTitle/playlistTitle in table, JSON, and CSV outputs
• update generated skill reference

Closes #45

Tests

• uv run pytest
• uv run ruff check src tests

[jdwit]

Subagent review (codex review --base main):

The new --resolve flag is implemented consistently across the command, docs, and tests. I did not find a discrete regression or correctness issue in the diff relative to main.

[codecov]

Codecov Report

❌ Patch coverage is 97.50000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 84.28%. Comparing base (7b9d4a3) to head (e7df5dc).

Files with missing lines	Patch %	Lines
src/ytstudio/commands/analytics.py	97.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #47      +/-   ##
==========================================
+ Coverage   83.90%   84.28%   +0.37%     
==========================================
  Files          15       15              
  Lines        2460     2500      +40     
  Branches      356      367      +11     
==========================================
+ Hits         2064     2107      +43     
+ Misses        264      262       -2     
+ Partials      132      131       -1     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.