refactor: rename SolaceScanScout to Solace and update related configurations

- Updated branding from "SolaceScanScout" to "Solace" across various files including deployment scripts, API responses, and documentation.
- Changed default base URL for Playwright tests and updated security headers to reflect the new branding.
- Enhanced README and API documentation to include new authentication endpoints and product access details.

This refactor aligns the project branding and improves clarity in the API documentation.

frontend/src/services/api/transactions.test.ts

@@ -0,0 +1,75 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+
+import { transactionsApi } from './transactions'
+
+describe('transactionsApi.diagnoseMissing', () => {
+  beforeEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it('distinguishes missing explorer and missing rpc results', async () => {
+    const fetchMock = vi.fn()
+      .mockResolvedValueOnce({
+        ok: false,
+        status: 404,
+        json: async () => ({ message: 'Not found' }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ result: null }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ result: null }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ result: '0x39fb85' }),
+      })
+
+    vi.stubGlobal('fetch', fetchMock)
+
+    const diagnostic = await transactionsApi.diagnoseMissing(
+      138,
+      '0x14d7259e6e75bbcd8979dc9e19f3001b0f328bbcdb730937f8cc2e6a52f26da6'
+    )
+
+    expect(diagnostic.checked_hash).toBe('0x14d7259e6e75bbcd8979dc9e19f3001b0f328bbcdb730937f8cc2e6a52f26da6')
+    expect(diagnostic.chain_id).toBe(138)
+    expect(diagnostic.explorer_indexed).toBe(false)
+    expect(diagnostic.rpc_transaction_found).toBe(false)
+    expect(diagnostic.rpc_receipt_found).toBe(false)
+    expect(diagnostic.latest_block_number).toBeTypeOf('number')
+    expect(diagnostic.rpc_url).toBe('https://rpc-http-pub.d-bis.org')
+  })
+
+  it('reports when rpc can still see a transaction the explorer has not indexed', async () => {
+    const fetchMock = vi.fn()
+      .mockResolvedValueOnce({
+        ok: false,
+        status: 404,
+        json: async () => ({ message: 'Not found' }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ result: { hash: '0xabc' } }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ result: null }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ result: '0x10' }),
+      })
+
+    vi.stubGlobal('fetch', fetchMock)
+
+    const diagnostic = await transactionsApi.diagnoseMissing(138, '0xabc')
+
+    expect(diagnostic.explorer_indexed).toBe(false)
+    expect(diagnostic.rpc_transaction_found).toBe(true)
+    expect(diagnostic.rpc_receipt_found).toBe(false)
+    expect(diagnostic.latest_block_number).toBe(16)
+  })
+})