Drop `tools=[...]` from tool-calling correctness checks

Drop "Clean add_generation_prompt=False" check (redundant)

Drop status messages from accordion titles; show description in body

Use meaningful sample messages; add a playground after the report

Add a self-verifying assert at the end of every reproducer

Auto-inspect on load + on edits, cache tokenizer once

Self-contained checks; drop misleading "X / Y passed" header

Add a "Format" button to pretty-print the Jinja template

Drop "Tool role" capability check

Pass messages positionally in reproducer snippets

Capability checks: simple sentinel-based "is X supported?" probes

Wire reproducers for every non-passing check

Combine renderings into a role-colored view; fill the window

Initial scaffold: chat template inspector