Hardcode Firecrawl API endpoint, drop FIRECRAWL_ENDPOINT config

Firecrawl has a single public API at https://api.firecrawl.dev/v2.
The endpoint was configurable but never varied across environments,
so hardcode it as a package-level const and remove the Endpoint
field from FirecrawlConfig and all downstream wiring (bootstrap,
Helm chart, probod, vetting, cookiebanner).

Signed-off-by: Émile Ré <emile@probo.com>

pkg/bootstrap/builder.go

@@ -177,8 +177,7 @@ func (b *Builder) Build() (*probodconfig.FullConfig, error) {
 				},
 			},
 			Firecrawl: probodconfig.FirecrawlConfig{
-				Endpoint: b.getEnv("FIRECRAWL_ENDPOINT"),
-				APIKey:   b.getEnv("FIRECRAWL_API_KEY"),
+				APIKey: b.getEnv("FIRECRAWL_API_KEY"),
 			},
 			Agents: probodconfig.AgentsConfig{
 				Providers: map[string]probodconfig.LLMProviderConfig{

pkg/bootstrap/builder_test.go

@@ -198,7 +198,6 @@ func TestBuilder_Build_Defaults(t *testing.T) {
 	assert.Equal(t, 86400, cfg.Probod.Notifications.Webhook.CacheTTL)
 
 	// Firecrawl — empty by default
-	assert.Empty(t, cfg.Probod.Firecrawl.Endpoint)
 	assert.Empty(t, cfg.Probod.Firecrawl.APIKey)
 
 	// Agents config — default
@@ -294,7 +293,6 @@ func TestBuilder_Build_CustomValues(t *testing.T) {
 	env["WEBHOOK_CACHE_TTL"] = "3600"
 	env["CONNECTOR_SLACK_SIGNING_SECRET"] = "slack-signing-secret"
 	// Firecrawl
-	env["FIRECRAWL_ENDPOINT"] = "https://api.firecrawl.dev/v2"
 	env["FIRECRAWL_API_KEY"] = "fc-test-key"
 	// Agents — providers
 	env["OPENAI_API_KEY"] = "sk-test-key"
@@ -381,7 +379,6 @@ func TestBuilder_Build_CustomValues(t *testing.T) {
 	assert.Equal(t, 10, cfg.Probod.Notifications.Webhook.SenderInterval)
 	assert.Equal(t, 3600, cfg.Probod.Notifications.Webhook.CacheTTL)
 	// Firecrawl
-	assert.Equal(t, "https://api.firecrawl.dev/v2", cfg.Probod.Firecrawl.Endpoint)
 	assert.Equal(t, "fc-test-key", cfg.Probod.Firecrawl.APIKey)
 	// Agents — providers
 	assert.Equal(t, "openai", cfg.Probod.Agents.Providers["openai"].Type)