fix(tests): add sections J-N, force WAITLIST_MODE=false in visual server

- Add 18 new E2E tests from master: pricing, checkout, supplier signup,
  supplier dashboard, and business plan export (sections J-N)
- Force WAITLIST_MODE=false in visual server subprocess — the root .env
  sets WAITLIST_MODE=true, and since Config class attributes evaluate at
  import time (before fork), the subprocess inherits the parent's value.
  Patching both os.environ and core.config directly ensures feature pages
  render instead of waitlist templates.
- All 77 visual tests now pass in ~59 seconds.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/tests/conftest.py

@@ -226,16 +226,45 @@ def sign_payload(payload_bytes: bytes, secret: str = "whsec_test_secret") -> str
 _VISUAL_PORT = 5111
 
 
+async def _seed_visual_data(conn):
+    """Seed a supplier + feature flags for E2E billing/dashboard tests."""
+    await conn.execute(
+        "INSERT INTO users (id, email, created_at)"
+        " VALUES (999, 'supplier@test.com', datetime('now'))"
+    )
+    await conn.execute(
+        "INSERT INTO suppliers"
+        " (id, name, slug, tier, claimed_by, claimed_at,"
+        "  country_code, region, category, credit_balance,"
+        "  monthly_credits, contact_name, contact_email, created_at)"
+        " VALUES (1, 'Test Supplier GmbH', 'test-supplier', 'pro', 999,"
+        "  datetime('now'), 'DE', 'Europe', 'construction', 50,"
+        "  10, 'Test User', 'supplier@test.com', datetime('now'))"
+    )
+    for flag in ("supplier_signup", "markets", "payments",
+                 "planner_export", "lead_unlock"):
+        await conn.execute(
+            "INSERT OR REPLACE INTO feature_flags (name, enabled)"
+            " VALUES (?, 1)", (flag,)
+        )
+    await conn.commit()
+
+
 def _run_visual_server(ready_event):
     """Run a Quart dev server in a subprocess for visual/E2E tests.
 
     Forces RESEND_API_KEY="" so no real emails are sent.
+    Forces WAITLIST_MODE=false so feature pages render (not waitlist templates).
     Runs migrations in-process to build the full schema (including FTS tables).
     """
     import asyncio
     import os
 
     os.environ["RESEND_API_KEY"] = ""
+    os.environ["WAITLIST_MODE"] = "false"
+    # Config class attributes are evaluated at import time (before fork),
+    # so we must also patch the live config object directly.
+    core.config.WAITLIST_MODE = False
 
     async def _serve():
         # Build schema DDL in-process (FTS5 virtual tables need this)
@@ -257,7 +286,16 @@ def _run_visual_server(ready_event):
         conn.row_factory = aiosqlite.Row
         await conn.execute("PRAGMA foreign_keys=ON")
         await conn.executescript(schema_ddl)
-        await conn.commit()
+        # Ensure feature_flags table exists (may be missed if an FTS5
+        # CREATE VIRTUAL TABLE causes executescript to stop early)
+        await conn.execute(
+            "CREATE TABLE IF NOT EXISTS feature_flags"
+            " (name TEXT PRIMARY KEY, enabled INTEGER NOT NULL DEFAULT 0,"
+            "  description TEXT,"
+            "  updated_at TEXT DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')))"
+        )
+        # Seed data needed by E2E tests (supplier dashboard, billing, etc.)
+        await _seed_visual_data(conn)
         core._db = conn
 
         # Patch init_db/close_db where they're USED (app.py imports them
@@ -266,7 +304,9 @@ def _run_visual_server(ready_event):
         # Patches must stay active through run_task() because before_serving
         # hooks call init_db() which would replace our in-memory DB.
         with patch("padelnomics.app.init_db", new_callable=AsyncMock), \
-             patch("padelnomics.app.close_db", new_callable=AsyncMock):
+             patch("padelnomics.app.close_db", new_callable=AsyncMock), \
+             patch("padelnomics.app.open_analytics_db"), \
+             patch("padelnomics.app.close_analytics_db"):
             app = create_app()
             app.config["TESTING"] = True
             ready_event.set()