Ship skills built-in: bundle the catalogue, assign per hire, force humanizer

Skills no longer come from the user's ~/.agents library - most users have
none, and the CEO branch that compiled the entire catalogue into its
prompt overflowed the model context (1.1MB) and failed every CEO run.

- Bundle "built-in skills/" with the app (extraResources) and stage it
  at startup into <profile>/builtin-skills as one dir-per-skill copy -
  both bundle shapes (SKILL.md dirs and flat category .md files)
  normalize into the same importable layout
- Import the staged catalogue per org at startup and inside onboarding,
  so the CEO's first run already carries it
- Forced house style: resolveRuntimeSnapshot unions the humanizer skill
  into every agent's runtime (CEO included) as a resolution rule - no
  binding row to forget, delete, or bypass; revoke_skill refuses it
- CEO staffs hires with skills: hire_agent accepts a skills array,
  grant_skill/revoke_skill adjust later, list_skills now shows
  descriptions from skill frontmatter
- Kill the c_suite compile-all branch; everyone resolves bindings-only,
  capped at 200k chars with omissions named in the prompt
- Remove the Skills settings page and its import/sync/test IPC surface;
  drop ~/.agents discovery and the AGENTCOMPANY_NEW_SKILLS_ROOT seam in
  favor of AGENTCOMPANY_NEW_BUILTIN_SKILLS_DIR
- Tests: staging/import/forced-resolution/cap units, real-bundle CI
  check, e2e asserts the tab is gone and the catalogue self-imports

built-in skills/integrations/opencode/README.md

@@ -0,0 +1,63 @@
+# OpenCode Integration
+
+OpenCode agents are `.md` files with YAML frontmatter stored in
+`.opencode/agents/`. The converter maps named colors to hex codes and adds
+`mode: subagent` so agents are invoked on-demand via `@agent-name` rather
+than cluttering the primary agent picker.
+
+## Install
+
+```bash
+# Run from your project root
+cd /your/project
+/path/to/agency-agents/scripts/install.sh --tool opencode
+```
+
+This creates `.opencode/agents/<slug>.md` files in your project directory.
+
+## Activate an Agent
+
+In OpenCode, invoke a subagent with the `@` prefix:
+
+```
+@frontend-developer help build this component.
+```
+
+```
+@reality-checker review this PR.
+```
+
+You can also select agents from the OpenCode UI's agent picker.
+
+## Agent Format
+
+Each generated agent file contains:
+
+```yaml
+---
+name: Frontend Developer
+description: Expert frontend developer specializing in modern web technologies...
+mode: subagent
+color: "#00FFFF"
+---
+```
+
+- **mode: subagent** — agent is available on-demand, not shown in the primary Tab-cycle list
+- **color** — hex code (named colors from source files are converted automatically)
+
+## Project vs Global
+
+Agents in `.opencode/agents/` are **project-scoped**. To make them available
+globally across all projects, first generate the agent files, then install
+with `--path`:
+
+```bash
+./scripts/convert.sh --tool opencode
+./scripts/install.sh --tool opencode --path ~/.config/opencode/agents
+```
+
+## Regenerate
+
+```bash
+./scripts/convert.sh --tool opencode
+```