style(13-03): apply Prettier formatting across repo

Mechanical reformat — no logic changes. 398 files changed, 19125
insertions(+), 16457 deletions(-). Prettier 3.8.4 with .prettierrc
(singleQuote:true, semi:true, tabWidth:2, trailingComma:all,
printWidth:100). Isolated per D-13-08 for reviewability.

.planning/todos/pending/2026-06-10-gitea-ci-regression-and-docker-publish.md

@@ -19,6 +19,7 @@ Two things should run automatically:
 2. **Build the app's Docker image and publish it to the Gitea container registry.**
 
 Open context / decisions to make when picking this up:
+
 - **Test scope:** "full regression" = lint + typecheck + unit + the API integration
   tests. Those integration tests need a real MariaDB (see
   [[api-integration-test-db]]) — the workflow must spin up a MariaDB service
@@ -36,6 +37,7 @@ Open context / decisions to make when picking this up:
 ## Solution
 
 TBD — likely a `.gitea/workflows/ci.yml`:
+
 - `on: pull_request` (to `main`) → job: install (pnpm), lint, typecheck, unit tests,
   API integration tests against a `mariadb` service container, PWA build.
 - `on: push` to `main` (or tag) → job: `docker build` `apps/api/Dockerfile`, login to