PR014 canonical executions

Completion times are enclosing report times, not per-subtest finish times. The complete procedure comprises file and HTTP variants; raw outcomes are retained.

Test execution: STV_TC_SY_062 before fix STV_TE_67ADF36ED5EF6CB3
status: recorded
result: failed
executed_at: 2026-10-24T18:22:10.614549+00:00
basis: observed
evidence: docs/test-execution/pr014-boundary/before.xml
priority: unassigned
verification_state: not_assessed
execution of: STV_TC_SY_062

Case: Visible viewport boundary d... (STV_TC_SY_062). Both file/HTTP variants reproduce partial clipping and fail on the absent border (0 px, style none). Actual node hit tests confirm the unmarked clip edge. Before report (retained in the engineering checkout).

Test execution: STV_TC_SY_062 after fix STV_TE_13CB015D758DFB0E
status: recorded
result: passed
executed_at: 2026-10-24T18:25:59.308004+00:00
basis: observed
evidence: docs/test-execution/pr014-boundary/after.xml
priority: unassigned
verification_state: not_assessed
execution of: STV_TC_SY_062

Case: Visible viewport boundary d... (STV_TC_SY_062). Both file/HTTP variants pass the complete procedure, including border-box host sizing, resizing and keyboard controls. Eight adjacent usability/offline/arrow variants also passed, retained in actual runner report (retained in the engineering checkout).