* Implement write_wrapper plugin hook for intercepting database writes
Add a new `write_wrapper` plugin hook that lets plugins wrap write
operations with before/after logic using a generator-based context
manager pattern. The hook receives (datasette, database, request,
transaction) and returns a generator function that takes a conn,
yields once to let the write execute, and can run cleanup after.
The write result is sent back via `generator.send()` and exceptions
are thrown via `generator.throw()`, giving plugins full visibility.
Also adds `request=None` parameter to execute_write, execute_write_fn,
execute_write_script, and execute_write_many, and threads request
through all view-layer call sites (insert, upsert, update, delete,
drop, create table, canned queries).
* Add documentation for wrap_write hook, fix lint issues
Document the wrap_write plugin hook in plugin_hooks.rst with
parameter descriptions and two examples: a simple logging wrapper
and an advanced SQLite authorizer-based table protection pattern.
Also fix black formatting and remove unused variable flagged by ruff.
* Rename wrap_write hook to write_wrapper for consistency with asgi_wrapper
* Move write_wrapper docs to just below prepare_connection
* Refactor write_wrapper tests to use pytest.parametrize
Consolidate duplicate test cases: merge before/after tests for
execute_write_fn and execute_write into one parametrized test, and
merge three parameter-passing tests into one parametrized test.
Claude Code transcript: https://gisthost.github.io/?c4c12079434e69677e4aa8ac664b21b8/index.html
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