Updated the read tool's provider-visible path schema, prompt docs, CLI help, and internal URL docs so URL and internal URI targets are advertised consistently. Added schema coverage for the read path description.\n\nFixes #2215
- Removed the read CLI argument and tool schema field so read requests no longer accept custom timeouts.
- Updated URL read handling to stop forwarding timeout values and execute URL reads without a timeout parameter.
- Standardized URL read fetching to a fixed 30-second timeout and dropped timeout metadata from URL call rendering.
- Registered a new `read` command in the CLI command registry so `omp read` can be invoked.
- Implemented `runReadCommand` to execute the read tool, wrap it with meta notices, and print text or image-result blocks.
- Added a `read` command class with required path input, optional timeout flag, and usage examples.
- Removed `pi-natives` chunk language classifier modules and all core chunk subsystems (kind, state, render, edit, resolve).
- Removed chunk-mode CLI/read/edit entrypoints, including `read` command and chunk mode registration/prompt tooling.
- Removed chunk selectors from `read` and `grep` tools, switching behavior to raw/L-range handling.
- Fixed poll wait parsing to keep defaulting to `30s` when the provided value is empty.
roboomp