docs(plan): inline corrections from T11/T12/T13 execution

Capture in the plan the Odoo 19 gotchas discovered during execution
that the original plan template missed:
- Test command requires --http-port=0 --gevent-port=0 (running
  container holds 8069).
- Declarative models.Constraint / models.Index (T2).
- res.users.groups_id renamed to group_ids (T3, T6).
- ir.rule groups is additive not restrictive (T3).
- mail.template inline-template ctx IS env.context (T11).
- ir.cron has no numbercall field in 19 (T12).
- registry.cursor() in tests is TestCursor; cr.commit() raises;
  use savepoints (T13).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/superpowers/plans/2026-05-26-fusion-login-audit.md

@@ -20,17 +20,26 @@ These apply to every task. Read once, internalize, then execute.
   ```bash
   docker exec odoo-modsdev-app cat /usr/lib/python3/dist-packages/odoo/addons/base/models/res_users.py | head -200
   ```
-- **Module location:** `K:\Github\Odoo-Modules\fusion_login_audit\` (Windows paths) which is bind-mounted into the `odoo-modsdev-app` container at `/mnt/extra-addons/fusion_login_audit/` (or whatever path the compose file specifies — verify with `docker inspect odoo-modsdev-app --format '{{json .Mounts}}' | python -m json.tool`).
+- **Module location:** `K:\Github\Odoo-Modules\fusion_login_audit\` (Windows paths) is bind-mounted into the `odoo-modsdev-app` container at `/mnt/odoo-modules/fusion_login_audit/`. (Verify with `docker inspect odoo-modsdev-app --format '{{json .Mounts}}' | python -m json.tool` if in doubt.)
 - **Field naming:** new fields on `res.users` and `res.config.settings` use the `x_fc_*` prefix. Fields on the new `fusion.login.audit` model use plain names.
 - **Settings field types:** booleans/integers/floats/char/selection/many2one/datetime only on `res.config.settings`. No Date fields. (`x_fc_login_audit_retention_days` is an Integer — not a Date.)
 - **`res.groups`:** never use `users=` or `category_id=`.
 - **HTTP routes:** if any are added, use `type="jsonrpc"` not `type="json"`.
 - **Canadian English** for all user-facing strings ("Authorise", "Centre", "behaviour", etc.).
-- **Test command shape:**
-  ```bash
-  docker exec odoo-modsdev-app odoo -d fusion-dev --test-enable --test-tags /fusion_login_audit -i fusion_login_audit --stop-after-init 2>&1 | tail -60
+- **SQL constraints & indexes — Odoo 19 declarative form (project CLAUDE.md rule #9):**
+  Do **not** write `_sql_constraints = [(name, def, msg), ...]` or override `init(self)` with raw SQL. Odoo 19 silently drops both with only a warning. Use the declarative class attributes:
+  ```python
+  _result_failure_reason_consistent = models.Constraint(
+      "CHECK (...)", "Failure rows must carry a failure_reason."
+  )
+  _user_time_idx = models.Index('(user_id, event_time DESC)')
   ```
-  First run uses `-i fusion_login_audit` (install). Subsequent runs after code changes use `-u fusion_login_audit` (update). Expected to take 15-40 seconds per run.
+  The attribute name (sans the leading underscore) becomes the SQL object's suffix: `{table}_{suffix}`. `models.Index` supports `DESC`, `WHERE`, and `USING ...`. Tasks that mention `_sql_constraints` or `init()` in this plan were written against the legacy pattern — translate to the declarative form when implementing.
+- **Test command shape (use ephemeral ports — the dev container holds 8069):**
+  ```bash
+  docker exec odoo-modsdev-app odoo -d fusion-dev --test-enable --test-tags /fusion_login_audit -u fusion_login_audit --stop-after-init --http-port=0 --gevent-port=0 2>&1 | tail -60
+  ```
+  Without `--http-port=0 --gevent-port=0` the second odoo process tries to bind 8069 and dies with `Address already in use`. Use `-i fusion_login_audit` only on the very first install; everything after T1 uses `-u` (update). Expected runtime: 15-40 seconds per run.
 - **Commit cadence:** every task ends with a commit. Branch is already `feat/fusion-login-audit` (cut from `main` at sha cc26b9ad). Never push without an explicit user request.
 - **Commit message footer:**
   ```