Remove vitest example files

https://claude.ai/code/session_01RnLjezrr6GTBfkrKRvRXtT

Remove database schema and initialization files

- Run prettier --write to fix formatting across 34 files
- Remove unused catch bindings in opencode plugins
- Remove unused `output` param and `fn` import in stories
- Replace triple-slash vitest/config reference with import style
- Wire up eslint-plugin-storybook flat/recommended config

Remove speculative scaffolding (getDb factory and task table) that has
zero callers. When a real query is needed, recreate the module with the
queries that use it.

Closes #2

Removes the four scaffold files in src/lib/vitest-examples/ that were
frozen pre-bits-ui and no longer serve as useful examples.

Closes #3

https://claude.ai/code/session_01RnLjezrr6GTBfkrKRvRXtT

docs(agents): consolidate agent instructions, add constant process pipeline + standards

Co-authored-by: opencode <noreply@opencode.ai>

The user asked whether we are now standardizing the tags/labels we
use. Partial answer: chronver (version), triage (issues), deciduous
(graph nodes) were already standardized. The commit and branch naming
vocabularies were de facto conventional-commits but not written down;
the 2026-06-03-02 task note explicitly flagged this as a future task.

- AGENTS.md Git workflow: new 'Branch and commit naming' subsection
with the conventional-commits 1.0.0 type list enumerated inline.
Branch names are <type>/<slug>; commit messages are
<type>(<scope>): <subject>; the type vocabulary is shared. The
chore(release): type is reserved for the version-bump commit.
Forks extend or trim the list via suede-kickoff Thread B Q8.
- AGENTS.md Layout: task note filename pattern formalized as
YYYY-MM-DD-NN-<slug>.md with the per-day counter rules. New
bullet for .opencode/{agents,commands,plugins,tools}/ kebab-case
file naming. New 'Task note section headings' subsection listing
the 6 required sections from the template, in order, with the
'all six required' rule.
- suede-kickoff Thread B Q8 sub-bullet 'Branch and commit naming':
rewritten to point at AGENTS.md's new rule, with the
extension/trim override path.

Co-authored-by: opencode <noreply@opencode.ai>