Fix JBang metadata generation to detect all commands and resolve completion candidates

[gnodet]

Summary

Fixes the PrepareCamelJBangCommandsMojo to correctly detect all JBang commands and resolve picocli ${COMPLETION-CANDIDATES} placeholders in generated documentation.

Changes

Mojo fixes (PrepareCamelJBangCommandsMojo.java):

• Fix SUBCOMMAND_PATTERN regex to match both new CommandLine(this) and new CommandLine(main), detecting previously missed commands (wrapper, dataweave)
• Add resolveCompletionCandidates() to find and parse picocli completionCandidates classes, replacing ${COMPLETION-CANDIDATES} with actual values in generated docs
• Improve sanitizeDescription() to clean up residual empty parentheses
• Add missing JavaSource import

Docs build resilience (docs/gulpfile.js):

• Improve resilientSrc() to process each glob pattern as a separate stream, so an ENOENT from one pattern (e.g. dsl glob hitting .camel-jbang/work) doesn't abort the other patterns (core, components). Previously, a single ENOENT would stop the entire stream, producing only 47 of 71 expected symlinks and causing xref-check failures.

Regenerated content:

• camel-jbang-commands-metadata.json — now includes wrapper and dataweave commands with all options
• ~23 .adoc command doc files — completion candidates resolved (e.g., Java version (21, 25) instead of Java version ())

[github-actions]

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[github-actions]

🧪 CI tested the following changed modules:

• docs
• dsl/camel-jbang/camel-jbang-core
• tooling/maven/camel-package-maven-plugin

ℹ️ Dependent modules were not tested because the total number of affected modules exceeded the threshold (50). Use the test-dependents label to force testing all dependents.

Build reactor — dependencies compiled but only changed modules were tested (6 modules)

• Camel :: Docs
• Camel :: Docs [pom]
• Camel :: JBang :: Core
• Camel :: JBang :: Core [jar]
• Camel :: Maven Plugins :: Camel Maven Package
• Camel :: Maven Plugins :: Camel Maven Package [maven-plugin]