CAMEL-22497: Make HTTPS easier for camel.server

[gnodet]

JIRA: CAMEL-22497

Summary

• Move SSL configuration (camel.ssl.*) before HTTP server configuration so global SSL context is available when the server is created
• Auto-enable useGlobalSslContextParameters on both HTTP server and management server when camel.ssl.enabled=true, removing the need to set it separately
• Generate a self-signed certificate when SSL is enabled but no keystore is configured, enabling HTTPS with a single property for development use

Before (4+ properties needed)

camel.ssl.enabled=true
camel.ssl.keyStore=file:keystore.jks
camel.ssl.keystorePassword=changeit
camel.server.useGlobalSslContextParameters=true

After — minimal for development (1 property)

camel.ssl.enabled=true

After — with keystore for production (3 properties)

camel.ssl.enabled=true
camel.ssl.keyStore=file:keystore.jks
camel.ssl.keystorePassword=changeit

Test plan

• Added testMainSSLSelfSigned — verifies self-signed cert is generated and a valid SSLContext can be created
• Added testMainSSLSelfSignedFluent — same test using fluent API
• Added testSelfSignedCertificateGenerator — unit test for the generator utility
• All 15 existing SSL tests still pass

[github-actions]

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[github-actions]

🧪 CI tested the following changed modules:

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