* FIX pre-commit PHPStan hook errors on commits with no file in scope
phpstan.neon.dist only analyzes htdocs/ and scripts/, but the
pre-commit wrapper passed every staged file straight to phpstan
regardless of path. A commit touching only files outside that scope
(e.g. test/phpunit/) made phpstan exit with "No files found to
analyse", failing the hook for reasons unrelated to the change being
committed. Filter to htdocs/ and scripts/ first, and skip cleanly
when nothing remains.
* NEW: Add phpunit test for Opensurveysondage class
Add a CRUD test (create/fetch/update/delete) for the Opensurveysondage
class, which had no test coverage yet.
Note: create()'s return value is not used to identify the created
record - Opensurveysondage::create() returns $this->id, but this
class never sets $this->id (the real primary key is the caller-
supplied $this->id_sondage string), so the return value carries no
information. The test uses errors/re-fetch to check success instead.
* NEW: Auto-activate module opensurvey in OpensurveysondageTest if needed
Activate module opensurvey in setUpBeforeClass() when it is not
already enabled, so the test does not depend on the environment's
module configuration.
Note: this activation is real and persists after the test run - it
is not undone by the transaction rollback in tearDownAfterClass().
Activating a module re-runs its SQL install scripts (CREATE/ALTER
TABLE), which causes an implicit commit in MySQL/InnoDB, same as an
admin enabling it from Setup > Modules would do.
