v1.7.0: remove unreliable MSRP price data

Removed:
- All MSRP price fields (msrp_usd + localized msrp_eur/gbp/inr/aed/aud/
  cad/vnd/chf) from the schema and stripped from 468 cameras. The data was
  sparse (~36%, single-currency, undated) and unreliable — omitting it is
  more honest than publishing inaccurate prices.

Changed:
- Clarified that video.streams[] describes stream capabilities, distinct
  from configs.frigate.* (the RTSP URLs to use) — they complement.

Docs: README schema table + roadmap updated; JSON-Schema-in-CI marked done.

Author: ch-bas

CHANGELOG.md

@@ -62,7 +62,6 @@
     "IP66",
     "Austrian consumer favourite Conrad/MediaMarkt"
   ],
-  "msrp_eur": 219.99,
   "sources": [
     "https://www.abus.com/at/"
   ],

README.md

@@ -62,7 +62,6 @@
     "IP66",
     "German brand"
   ],
-  "msrp_eur": 219.99,
   "sources": [
     "https://www.abus.com/"
   ],

cameras/abus/ppic42520-at.json

@@ -63,7 +63,6 @@
     "IP66",
     "German brand"
   ],
-  "msrp_eur": 189.99,
   "sources": [
     "https://www.abus.com/"
   ],

cameras/abus/ppic42520.json

@@ -63,7 +63,6 @@
     "no mandatory subscription",
     "German brand"
   ],
-  "msrp_eur": 219.99,
   "sources": [
     "https://www.abus.com/"
   ],

cameras/abus/ppic44520.json

@@ -61,7 +61,6 @@
     "IP65",
     "German brand"
   ],
-  "msrp_eur": 199.99,
   "sources": [
     "https://www.abus.com/"
   ],

cameras/abus/ppic46520.json

@@ -65,7 +65,6 @@
     "IP67",
     "ONVIF/RTSP"
   ],
-  "msrp_eur": 299.99,
   "sources": [
     "https://www.abus.com/"
   ],

cameras/abus/ppic90520.json

@@ -67,7 +67,6 @@
     "no mandatory cloud",
     "GDPR compliant"
   ],
-  "msrp_eur": 249.99,
   "sources": [
     "https://www.abus.com/at/"
   ],

cameras/abus/tvip42520.json

@@ -64,7 +64,6 @@
     "IK10",
     "German engineering brand"
   ],
-  "msrp_eur": 249.99,
   "sources": [
     "https://www.abus.com/"
   ],