Address reviewer feedback on #83:
- Replace dynamic `await import("./bootstrap-capable.js")` in
bundle.ts with a static top-of-file import (no real cycle exists,
bootstrap.ts is already statically imported).
- Remove unused `bootstrapSym` Symbol.for() / `void bootstrapSym`
dead code in importBundle.
- Move the misplaced `import { decode } from "cborg"` to the top of
bundle.ts with the other imports.
- Document the new `export` / `import` commands and `--store`,
`--scope`, `-o` flags in:
- root README.md (commands + global flags)
- packages/cli/README.md (command table + bundles section + global flags)
- packages/cli/prompts/usage.md (`ocas prompt usage` output)
- packages/core/README.md (Closure & Bundles API surface)
- .cards/cli.md (bundle commands + --store architecture note)