[GREEN] Installable desktop builds and local runtime packaging

[ksamaschke]

Scoped Behavior Slice

Implement the minimum production change required to make 'Installable desktop builds and local runtime packaging' pass.

Test Command or Verification Path

• Re-run the failing RED verification first.
• Run nearby focused regression coverage after the scoped implementation passes.

Required Evidence Format

• Link passing evidence back to the RED work-item.
• Capture the exact command(s) proving the scope is now green.

Tracking

• Type: work-item
• Phase: green

Parent: #178

[ksamaschke]

GREEN evidence for installable desktop packaging

Command 1:
npm run clean:compiled-tests && ./node_modules/.bin/tsc -p tsconfig.json && NODE_PATH="/Users/karsten/Work/Development/intelligentcode-ai/intelligent-code-agents/node_modules" node --test dist/tests/installer/desktop-release-packaging.test.js

Result:

• 5 passing
• 0 failing

Passing scope:

• release output now includes concrete desktop assets for macOS, Windows, and Linux under final artifact names
• release workflow, checksums, signing, and docs all reference those concrete artifact filenames instead of .package.json placeholders

This closes the RED gap from #179 and marks the scoped packaging slice green.

[ksamaschke]

Closed via merge of PR #196 into dev.