Fix group filters for dynamic builds

[jcfr]

Summary

Dynamic build rows are displayed under the target build group selected by their rule, but group-name filters were evaluated against the source build group.
This could return a row whose displayed group did not match the requested filter, while filtering for the displayed dynamic group could omit that row.

Apply group-name predicates to the dynamic rule's target group and continue applying all other predicates to the source build.

Implementation

For each dynamic build-group rule:

• substitute the displayed target group for g.name predicates;
• bind the target group name as a query parameter;
• retain build name, site, date, and other filters on the source build.

Tests

Added a dedicated integration test using a Nightly source build and a Latest target group, with the rule constrained by parent group, site, and build name. It verifies that:

• filtering for the source group does not leak a row displayed under the dynamic target group;
• filtering for the target group returns the dynamic row;
• an additional non-matching build-name filter still excludes the row.

The regression test fails without patching the controller and passes with this change.

Validation:

• PHP style check
• PHP static analysis
• Full CTest suite: 279/279 tests passed