f87e9ab3f5
Resolved add/add conflict in the top-level firmware README: both I and J created one (J's brief said "create it if I hasn't", and both ran in isolated worktrees with no visibility into each other). Combined them — kept I's comprehensive core-project README as the base, appended J's real RTL-SDR technical section, dropped J's now-stale "Status of this directory" preamble (written when it couldn't see I's already-completed work) and its duplicate honesty-policy note. Updated the stale components/README.md placeholder to reflect that the module now exists.
components/
rtlsdr_experimental/ — the RTL-SDR experimental module (Workstream J in
docs/superpowers/specs/2026-07-23-esp32-sensor-node-design.md), USB-host
communication with an RTL2832U-based dongle via the ESP32-P4's USB-OTG host
capability. Off by default (RTLSDR_EXP_ENABLE=n in its Kconfig). See
the top-level ../README.md's "Workstream J" section for what's
implemented, what's unverified, and why it's a separate opt-in component
rather than folded into main/.