fix(cleanup): resolve 9 low-priority issues (P34-P42)

P34: Remove test_sample plugin from production code
P35: Remove CompanyContact=None dead code from contact.py
P36: Change Plugin.config from Text to JSONB (model + migration 0117 + service)
P37: Add AI comment about workspace overengineering in workspace.py
P38: Add container resource limits to docker-compose.yaml
P39: Guest TTL 1800 not found — already migrated to regular users
P40: Add AI comment about missing IP/Device binding in session.py
P41: Fix Redis healthcheck to use auth password
P42: RLS migration history comment already present in alembic/env.py

app/plugins/builtins/test_sample/__init__.py

@@ -1,56 +0,0 @@
-"""Test sample plugin for LeoCRM plugin system testing."""
-
-from __future__ import annotations
-
-from typing import Any
-
-from app.plugins.base import BasePlugin
-from app.plugins.manifest import PluginManifest
-
-
-class TestSamplePlugin(BasePlugin):
-    """A sample plugin for testing the plugin lifecycle."""
-    __test__ = False
-
-    manifest = PluginManifest(
-        name="test_sample",
-        version="1.0.0",
-        display_name="Test Sample Plugin",
-        description="A sample plugin for testing install/activate/deactivate/uninstall lifecycle.",
-        dependencies=[],
-        routes=[],
-        events=["contact.created"],
-        migrations=["0001_test_plugin.sql"],
-        permissions=[],
-    
-        author="LeoCRM Team",
-        min_app_version="1.0.0",
-        contract_version="1.0.0")
-
-    def __init__(self) -> None:
-        super().__init__()
-        self.install_called = False
-        self.activate_called = False
-        self.deactivate_called = False
-        self.uninstall_called = False
-        self.event_log: list[dict[str, Any]] = []
-
-    async def on_install(self, db, service_container) -> None:
-        self.install_called = True
-
-    async def on_activate(self, db, service_container, event_bus) -> None:
-        self.activate_called = True
-        await super().on_activate(db, service_container, event_bus)
-
-    async def on_deactivate(self, db, service_container, event_bus) -> None:
-        # Contract abmelden
-        from app.plugins.builtins.contracts import get_contract_registry
-        get_contract_registry().unregister(self.manifest.name)
-        self.deactivate_called = True
-        await super().on_deactivate(db, service_container, event_bus)
-
-    async def on_uninstall(self, db, service_container) -> None:
-        self.uninstall_called = True
-
-    async def on_contact_created(self, payload: dict[str, Any]) -> None:
-        self.event_log.append({"event": "contact.created", "payload": payload})

app/plugins/builtins/test_sample/contracts.py

@@ -1,38 +0,0 @@
-"""Public contract for the test_sample plugin.
-
-Exposes only the symbols that other builtins plugins need.
-Importers should use::
-
-    from app.plugins.builtins.contracts import get_contract
-    ts = get_contract("test_sample")
-    if ts:
-        # use ts.TestSamplePlugin
-
-instead of importing from internal modules directly.
-"""
-
-from __future__ import annotations
-
-from app.plugins.builtins.contracts import get_contract_registry
-from app.plugins.builtins.test_sample import TestSamplePlugin
-
-
-class TestSampleContract:
-    """Public API surface for the test_sample plugin."""
-
-    contract_name = "test_sample"
-
-    # ─── plugin class ───
-    TestSamplePlugin = TestSamplePlugin
-
-
-# ─── self-registration ───
-
-_contract = TestSampleContract()
-get_contract_registry().register("test_sample", _contract)
-
-
-__all__ = [
-    "TestSampleContract",
-    "TestSamplePlugin",
-]

app/plugins/builtins/test_sample/migrations/0001_test_plugin.sql

@@ -1,9 +0,0 @@
--- Test sample plugin migration: creates a test table with tenant_id
-CREATE TABLE IF NOT EXISTS test_sample_items (
-    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
-    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
-    name VARCHAR(100) NOT NULL,
-    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
-);
-
-CREATE INDEX IF NOT EXISTS ix_test_sample_items_tenant ON test_sample_items(tenant_id);