Add run.sh support to the project form

[germanescobar]

Problem

The project create/edit UI currently only lets users configure setup.sh commands. Projects can also have a run.sh script, and the backend already has script discovery support for run.sh, but there is no project form field for entering or updating those commands.

Current UI references:

• client/src/pages/ProjectSetup.tsx stores and submits setupCommands only.
• client/src/pages/EditProject.tsx edits setupCommands only.
• client/src/api.ts exposes project create/update payloads with setupCommands only.

Related backend reference:

• server/lib/project-scripts.ts already checks for run.sh when resolving project scripts.

Expected behavior

Add project form support for run.sh commands alongside setup.sh:

• The create project form should include a field for run commands.
• The edit project form should load, update, and clear run commands.
• Project create/update API payloads should include the run commands field.
• Server-side project persistence should write .coding-orchestrator/run.sh when commands are provided and remove it when cleared.
• UI labels/help text should make the difference between setup commands and run commands clear.

Acceptance criteria

• Creating a project with run commands creates .coding-orchestrator/run.sh.
• Editing a project can add, update, and clear .coding-orchestrator/run.sh.
• Existing setup.sh behavior still works.
• TypeScript types are updated without broad or unsafe types.
• Relevant tests are added or updated for create/update behavior if test coverage exists for project persistence/routes.