feat(ruview-live): showcase views — CSI waterfall, radar fan, animated cells (ADR-378)

The /ruview pane gains three views (keys 1/2/3) drawn in terminal Rasters
and animated in place with $.ui.blit (~12 fps, no redraws):

- CSI waterfall: per-subcarrier amplitude over time from the new
  `esp32 --spectrum` capture, two frames per row via the half block,
  5-95th percentile colour limits, replayed at the frames' arrival rate,
  labelled MEASURED or SYNTHETIC from the packets' own flag; n cycles nodes.
- Radar: a 120-degree range fan with rings, a fading distance trail and a
  sonar ping to the measured range; braille heart/breathing/distance charts
  scaled to the data; a heart and breathing gauge that pulse at the
  device-reported rates ("a metronome, not a waveform").
- A shimmer rule under the title; surfaces without Raster get a note.

Harness: captureEsp32 / ruview_esp32_capture take spectrum,
spectrum_bins (8-128) and spectrum_frames (8-256): a bounded ring of
binned amplitude frames per node, dominant shape, rate and synthetic flag.

The mod is split into model/raster/anim/views/register (own-file imports
only). Tests: 11 showcase + 11 mod Node tests, a --spectrum loopback test,
4 engine tests (waterfall tab sends --spectrum, draws the Raster, blits);
npm test 189 pass, test:security 90 pass, manifest verified, validate passes.

Evidence: MEASURED on an ESP32-C6 (COM11, release c6-adr110 v0.7.0, node 6)
streaming 7-18 Hz CSI to this host; a 1x256 capture renders the occupied
band against guard/null tones. Unpacked budget 384 -> 448 KiB (+~37 KB).

Co-Authored-By: claude-flow <ruv@ruv.net>

.github/workflows/npm-packages.yml

@@ -44,8 +44,9 @@ jobs:
             # still runtime-dependency-free. ADR-369..374 add the SDK, firmware
             # flashing, training runner/gate, doctor, device access, and SSH
             # hosts. ADR-375 adds the MCP Apps console widget (~12 KB), the
-            # Streamable HTTP transport and the terminal UI: 384 KiB reviewed ceiling.
-            unpacked_budget: 393216
+            # Streamable HTTP transport and the terminal UI (384 KiB); ADR-378 the
+            # ruview-live showcase views (~37 KB): 448 KiB reviewed ceiling.
+            unpacked_budget: 458752
           - dir: harness/homecore
             build: false
             publishable: true

.github/workflows/ruview-npm-release.yml

@@ -106,8 +106,8 @@ jobs:
           case "${{ inputs.package }}" in
             # ADR-283/325/369-374: brain + hosts + replay + Spaces OAuth + SDK,
             # flashing, training, doctor, device access, SSH hosts; ADR-375 console
-            # widget, HTTP transport, terminal UI; no runtime deps.
-            harness/ruview) export UNPACKED_BUDGET=393216 ;;
+            # widget, HTTP transport, terminal UI; ADR-378 mod showcase; no runtime deps.
+            harness/ruview) export UNPACKED_BUDGET=458752 ;;
             # ADR-285: CLI + MCP + reviewed brain + WASM-kernel adapter.
             harness/homecore) export UNPACKED_BUDGET=180000 ;;
             # ADR-264 O2: map-free tarball (was 188 kB with maps).