[elpete]

PostgreSQL dropAllObjects() currently drops tables but leaves application functions behind. CommandBox Migrations' migrate fresh then fails when replaying migrations with CREATE FUNCTION because those functions already exist.

This change also drops functions and procedures in the requested schema, including when no tables remain. Extension-owned routines are excluded. Qualified catalog argument types identify overloads without depending on search_path and avoid JDBC parsing issues with timestamp with time zone signatures. IF EXISTS handles routines already removed by cascading table drops.

Validation:

• 151 focused PostgreSQL schema TestBox checks passed, with zero failures or errors.
• Real PostgreSQL regression covers overloads, quoted names, procedures, timestamp arguments, table-dependent functions, routine-only resets, extension preservation, and another schema remaining intact. This spec is opt-in via QB_POSTGRES_RESET_TEST=true and requires a disposable PostgreSQL datasource without pgcrypto already installed; its changes roll back.
• Verified CommuniArts' complete migration sequence, followed by migrate fresh and IntoTheWoodsDemoSeeder, in a disposable database. Cleanup passed.
• Targeted CFFormat and git diff --check passed. Full engine/database matrices have not been run locally.