feat(deploy): add deploy script and per-device config files

deploy/deploy.sh — automated deploy: arch detection, scp .app, write
seed.json, verify. Supports single laptop, list, or "all"; --seed-only
flag skips .app copy for key-rotation runs.

deploy/devices.conf — all 19 laptops (num / IP / event_device_id).
deploy/event.env.example — template for gitignored event.env (API key).

README updated: deploy/ table, script usage, manual steps moved to
reference section.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

deploy/devices.conf

@@ -0,0 +1,28 @@
+# Aether Native Launcher — Device List
+# Fields: laptop_num  ip_address  event_device_id  [notes]
+# Blank lines and lines starting with # are ignored.
+#
+# IP pattern: 192.168.32.1XX (XX = zero-padded laptop number)
+# SSH user: "speaker ready" on all laptops
+# Find/replace 192.168.32 for other venue network prefixes.
+#
+# num   ip                 event_device_id   notes
+01      192.168.32.101     tFLL1fLQfnk
+02      192.168.32.102     rpbfunVPEzw
+03      192.168.32.103     1EPfPX8kfw8
+04      192.168.32.104     zvgyLM5yieU
+05      192.168.32.105     QOc046GoeSc
+06      192.168.32.106     2o8j6eb0L6s
+07      192.168.32.107     Oa1tlxPEVSQ
+08      192.168.32.108     fY4yznpUZ48
+09      192.168.32.109     YlgGCyjo9bY
+10      192.168.32.110     GcTnFsp1mHI
+11      192.168.32.111     6z88m9oEZio
+12      192.168.32.112     EggJqL2kWkA
+13      192.168.32.113     O11eckHFdVE
+14      192.168.32.114     reI0SecUEhI
+15      192.168.32.115     crozxT8mA44
+16      192.168.32.116     0nP4VZsvr2Q
+17      192.168.32.117     Gm2gNqPGzLA
+19      192.168.32.119     6tpukvRVugU
+x20     192.168.32.120     rwLYnKUNd1M     old 04, spare/retired