[kid7st]

Fixes #919. Option 2 of the issue.

Behavior

When the agent's working directory is not its definition's directory (every local instance since #918), the prompt now says one of two things about the definition, by what the definition is:

• Source project (dev, invoke, schedules run on a project): "Your definition is in X, the author's working copy: SYSTEM.md, AGENTS.md, skills/ and prompts/ are re-read for every message, so an edit to them takes effect on the next one, while src/ and the configuration are read when you start and need a restart."
• Built package (start, a deployment, an embedded openAgent(definition)): unchanged, "which you read and do not change."

The distinction is AgentDefinition.source, set only by loadSourceDefinition and never written into a built entry, so the prompt does not compare paths.

Verification

npm run lint, npm run typecheck, npm test (195 files, 2389 passed, 3 skipped). New tests: the source wording through a real open with a separate workdir, and the built wording; build.test.ts asserts a built definition has no source. Replacing the wiring with source: false fails the first.

Known limitations

Under dev the supervisor restarts the process when src/ or the configuration change, so the "need a restart" clause is accurate there but one-shot commands (invoke) only see such a change on their next run.