CAMEL-23667: Add --stub=remote flag to stub only remote components via catalog

[davsclaus]

Summary

• Adds a new --stub=remote flag that uses the Camel catalog's remote field on ComponentModel to determine which components to stub, instead of relying on the hardcoded accepted list
• Components where remote=true (e.g., kafka, jms, sql) are stubbed; components where remote=false (e.g., timer, direct, seda, log) are accepted
• The existing ACCEPTED_STUB_NAMES list is still respected in remote mode for backward compatibility
• Updates the TUI "Stub (no Docker needed)" checkbox to use --stub=remote instead of --stub=all
• Documents the new flag in the camel-jbang user manual

Test plan

• Run an example with --stub=remote and verify remote components (e.g., kafka) are stubbed while local components (e.g., timer, direct) work normally
• Run with --stub=all and verify existing behavior is unchanged
• Verify TUI stub checkbox uses --stub=remote

Claude Code on behalf of Claus Ibsen

🤖 Generated with Claude Code

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🧪 CI tested the following changed modules:

• catalog/camel-catalog
• docs
• dsl/camel-jbang/camel-jbang-core
• dsl/camel-jbang/camel-jbang-plugin-tui
• dsl/camel-kamelet-main

⚠️ Some tests are disabled on GitHub Actions (@DisabledIfSystemProperty(named = "ci.env.name")) and require manual verification:

• dsl/camel-jbang/camel-jbang-core: 1 test(s) disabled on GitHub Actions

💡 Manual integration tests recommended:

You modified dsl/camel-jbang/camel-jbang-core. The related integration tests in dsl/camel-jbang/camel-jbang-it are excluded from CI. Consider running them manually:

mvn verify -f dsl/camel-jbang/camel-jbang-it -Djbang-it-test

All tested modules (10 modules)

• Camel :: Catalog :: Camel Catalog
• Camel :: JBang :: Core
• Camel :: JBang :: MCP
• Camel :: JBang :: Plugin :: Route Parser
• Camel :: JBang :: Plugin :: TUI
• Camel :: JBang :: Plugin :: Validate
• Camel :: Kamelet Main
• Camel :: Launcher :: Container
• Camel :: YAML DSL :: Validator
• Camel :: YAML DSL :: Validator Maven Plugin

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