- Add date command implementation that displays current time in UTC format
- Add pwd command to print current working directory
- Update Makefile to build date and pwd as user programs with shared ELF loading
- Refactor syscall handling to use shared header definitions
- Remove KernelGreeting class from kernel startup sequence
- Update README and ROADMAP documentation for new user commands
- Add test assertions for date and pwd command output in test suite
- Introduce reusable command address space management in process.c
- Add user-accessible page mapping (32-36 MiB) in boot.S with proper permission bits
- Implement ELF64 loader and process management in new process.c module
- Add syscall infrastructure including int 0x80 handler in process-entry.S
- Create userspace programs (sh, ls, cd) with dedicated linker script
- Integrate filesystem path type checking and directory listing functions
- Reserve memory regions for user processes and update kernel memory layout
- Add console input/output support for userspace applications
- Update kernel main loop to start user process after initialization
- Modify Makefile to build and embed userspace ELF images as kernel objects
- Document new userspace capabilities and limitations in README.md
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