fix(issue-176): replace invalid CONFIG_BTF with real BTF/eBPF config options
- CONFIG_BTF=y was not a valid kernel config option
- Changed to CONFIG_DEBUG_INFO_BTF=y (the real option)
- Added CONFIG_KPROBE_EVENTS=y for kprobe-based syscall tracing
- Added CONFIG_UPROBES=y + CONFIG_UPROBE_EVENTS=y for userspace probes (RASP bypass use case)
- Kept CONFIG_BPF_EVENTS=y and CONFIG_FUSE_BPF=y