docs: update /start description and add exploration-context.md to artifacts

fix: eliminate duplicate exploration between /start and /research

remove: /iterate command - iteration happens in /plan conversation

docs: explain why artifacts are local-only

fix: ensure artifacts are local-only and gitignored

fix: align README and AGENTIC_WORKFLOW docs

feat: upgrade to 11-command workflow with coach/scout and oh-my-opencode integration

feat: add design principles to command prompts

refactor: reduce command/agent prompt tokens by 44%

chore: remove branchlet dependency, use git worktree directly

chore: sync workflow updates from config

refactor: overhaul workflow with 9-command ACE-FCA aligned system

Revert "use explicit bd commands"

use explicit bd commands

fix ascii