fix: replace stale -R=/role refs with -P=/profile in eval rubrics and test docs

cleanup: fix broken tests, remove dead code, delete stale docs, archive design

skill: rewrite for prompt-driven config model

docs: align remaining files with profile-based config

docs: rewrite strategic docs for prompt-driven config model

config prompts: surface model, timeout, description from frontmatter

chore: remove stale config.toml remnants and fix hook test

remove cwd search from profile resolution — single global dir only

remove stale roles system, simplify profile search to 2 dirs

simplify: decouple timeout from effort, proportional grace period

simplify: remove config.toml, converge on prompt files + conventions

fix: update test assertions for softened artifact dir preamble

fix: check inbox after process exit before abandoning restart

fix: replace brace-depth JSON parser with json.Decoder in ax-eval judge

fix: reject flag-like values in string flags (B-10 -cwd parsing)