docs: simplify Colab setup across tutorials - #77

Summary

Replace the long installation preamble with a collapsed “Set up Google Colab” cell. Introductory examples explain installation in two sentences; later examples link back to the introduction. The approved copy includes “locally or in HTML”.

19 notebooks regenerated. Scientific code is unchanged.

Scripts Changed

None. This PR regenerates notebook setup from the canonical scripts using the shared generator.

Upstream PR

PyAutoLabs/PyAutoHands#328 — merge the generator first.

Validation

• Full tutorial smoke suite: 19 scripts passed with MPLBACKEND=Agg.
• Generation succeeded across the project. Every runnable notebook has one compact setup cell; repeat generation is idempotent and science code matches the previous notebooks.
• Shared generator: 584 tests passed. Fresh Colab behavior is covered by simulated tests; hosted Colab was not exercised.

Heart override

User authorization: “I authorize you to continue despite RED”.

Exact current reasons:

• PyAutoArray: 4 uncommitted source change(s)
• PyAutoGalaxy: 9 commit(s) behind origin
• PyAutoLens: 7 commit(s) behind origin
• release validation stale: source moved since rehearsal (PyAutoGalaxy, PyAutoLens)

Development ship only; no merge, release or CI bypass.

Part of PyAutoLabs/PyAutoHands#327.