test: add full-stack Playwright integration test infrastructure

Sprint 12 Phase 2: Real integration tests with seed DB
- R__seed_test_data.sql (Flyway repeatable, 7 members, strains, batches, docs, board, events)
- TestResetController (profile-gated per-test DB reset)
- docker-compose.test.yml (self-contained, tmpfs Postgres)
- Dockerfile.playwright (v1.60.0, pre-installed deps)
- 13 integration spec files, 70+ test cases (@smoke + @full)
- seed-constants.ts, selectors.ts, api-client.ts test helpers

cannamanage-frontend/e2e/integration/10-compliance.spec.ts

@@ -0,0 +1,62 @@
+import { expect, test } from "@playwright/test"
+
+import { ApiClient } from "../api-client"
+import { SEED } from "../seed-constants"
+
+const apiClient = new ApiClient()
+
+test.describe("Compliance Dashboard @full", () => {
+  test.beforeEach(async () => {
+    await apiClient.login(SEED.admin.email, SEED.admin.password)
+    await apiClient.resetDb()
+  })
+
+  test("compliance dashboard loads", async ({ page }) => {
+    await page.goto("/compliance")
+    // Page should load without error
+    await expect(
+      page
+        .getByText(/compliance|konformität/i)
+        .first()
+        .or(page.getByRole("heading").first())
+    ).toBeVisible()
+  })
+
+  test("shows area status cards", async ({ page }) => {
+    await page.goto("/compliance")
+    // Should display compliance areas: KCANG, FINANCE, DSGVO, VEREIN
+    await expect(page.getByText(/kcang/i)).toBeVisible()
+    await expect(page.getByText(/finan/i).first()).toBeVisible()
+    await expect(page.getByText(/dsgvo|datenschutz/i).first()).toBeVisible()
+    await expect(page.getByText(/verein/i).first()).toBeVisible()
+  })
+
+  test("overdue deadlines highlighted", async ({ page }) => {
+    await page.goto("/compliance")
+    // EÜR Abgabe should be overdue and highlighted
+    await expect(
+      page.getByText(/EÜR/i).or(page.getByText(/überfällig|overdue/i).first())
+    ).toBeVisible()
+
+    // Overdue items should have visual distinction (red text, warning badge, etc.)
+    const overdueIndicator = page
+      .locator("[data-testid*='overdue']")
+      .or(page.locator(".text-destructive, .text-red, [class*='overdue']"))
+      .first()
+
+    if (await overdueIndicator.isVisible()) {
+      await expect(overdueIndicator).toBeVisible()
+    }
+  })
+
+  test("upcoming deadlines show days remaining", async ({ page }) => {
+    await page.goto("/compliance")
+    // Should display upcoming deadlines with days remaining
+    await expect(
+      page
+        .getByText(/tag|day/i)
+        .first()
+        .or(page.locator("[data-testid*='deadline']").first())
+    ).toBeVisible()
+  })
+})