fix: include relation title in wildcard describe output

[devadathanmb]

Description

When \d / \d+ is used with a pattern that matches multiple relations, each relation’s detail output should include clear context (relation kind + qualified name). This is consistent with how psql displays describe output, where each relation is prefixed with a descriptive title such as Table "public.tbl1" or View "public.vw1".

This change restores that context by returning a descriptive title for each described relation, aligning pgcli’s behavior with psql and making wildcard describe results unambiguous.

I have run the full pgcli test suite locally with this patch in pgspecial to ensure that nothing breaks after this change.

Closes both dbcli/pgcli#1521 and #158

Screenshots

Before (In pgcli):

Notice that the output does not display the relation name or relation kind.

After (In pgcli):

Output now correctly displays fully qualified relation names.

Checklist

• I've added this contribution to the changelog.rst.
• I installed pre-commit hooks (pip install pre-commit && pre-commit install).
• Please squash merge this pull request (uncheck if you'd like us to merge as multiple commits)

[Copilot]

Pull request overview

Restores per-relation context in \d / \d+ output by returning a descriptive title (relation kind + qualified name) for each described relation, making wildcard (\d pattern) results unambiguous.

Changes:

• Add relkind→display-name mapping and return a non-None title from describe_one_table_details().
• Update \d / \d+ describe-detail tests to assert the new titles.
• Add an Unreleased changelog entry documenting the fix.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
pgspecial/dbcommands.py	Generates a per-relation title based on relkind and schema.relation for describe-detail output.
tests/test_specials.py	Updates expectations for \d <relation> / \d+ <relation> to include the returned titles.
changelog.rst	Documents the behavior change under Unreleased bug fixes.

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