fix(curation): drop over-broad demo/test/ea2/sdx/runtime-reference regexes

The allowlist by _key now handles those exclusions cleanly. The bare
'demo' / 'test' / 'ea2' regexes were sweeping out pr_to_po_def itself
('Executable curated procurement process for demo.flow-master.ai reset
smoke checks.') because its description contains both 'demo' and the
old smoke[_\\s]?test pattern variant.

src/lib/flowCuration.ts

@@ -18,14 +18,8 @@ const DEV_ARTEFACT_PATTERNS = [
   /\bsidekick\b/i,
   /^process_\d{10,}$/i,
   /\bbackfill\b/i,
-  /\bsmoke[_\s]?test\b/i,
   /\bprobe\b/i,
   /\bfixture\b/i,
-  /\bea2\b/i,
-  /\bsdx\b/i,
-  /\bruntime reference\b/i,
-  /\bdemo\b/i,
-  /\btest\b/i,
 ];
 
 const NON_BUSINESS_SOURCE_CONTEXTS = new Set([