What this PR does / why we need it:

Adds the 22-slide Feast + Chronon presentation for Feature Store Summit under docs/presentations/feast-chronon-summit/, linked from the docs navigation. The standalone HTML includes the checkout code walkthrough, actual Feast UI screenshot, and recorded demo, and works offline without Feast or Chronon running.

Includes speaker notes, a standard-library Python generator, source media, and instructions for downloading, presenting, editing, and rebuilding the deck. This is a dated snapshot of the proposed integration in #6188: implementation claims reference 55873756b, while the embedded September 13 demo remains pinned to fc3c683d9.

Which issue(s) this PR fixes:

Related to #6188. This PR contains presentation/documentation assets only and can be reviewed independently of the adapter changes.

Checks

• I've made sure the relevant checks are passing.
• My commits are signed off (git commit -s)
• My PR title follows conventional commits format

Testing Strategy

• Manual tests

Rebuilt the deck using only Python's standard library and the committed assets. Confirmed the generated HTML, notes, and content JSON match the existing presentation byte-for-byte. Checked all 22 slides and note blocks, embedded video/image payloads, JavaScript syntax with node --check, Ruff lint/format checks for the generator, and git diff --check.

No Feast runtime code changes. The rebuild validation does not rerun the historical demo or integration tests recorded in the presentation.