merge: incorporate origin/main into community-mode branch

Resolved 10 conflicted files:
- VERSION/package.json: kept 0.12.0.0 (feature branch version)
- CHANGELOG.md: preserved both branch entry and main's new entries
- supabase/config.sh: kept GSTACK_WEB_URL, accepted TELEMETRY_ENDPOINT removal
- bin/gstack-{community-dashboard,telemetry-log,telemetry-sync,update-check}:
  took main's improved versions (edge function approach, safe cursor, UUID gen)
- supabase/functions/community-pulse: took main's count-based approach
- test/telemetry.test.ts: took main's structure with fingerprint field name

Post-merge fixes:
- Removed shadowed local RESOLVERS/functions in gen-skill-docs.ts (main's
  resolver imports now take precedence for tier-based preamble, coverage gates)
- Added 3 missing E2E_TIERS entries (ship-plan-*, review-plan-completion)
- Updated telemetry test to match current prompt text
- Regenerated all SKILL.md files

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

bin/gstack-telemetry-log

@@ -115,17 +115,26 @@ if [ -d "$STATE_DIR/sessions" ]; then
 fi
 
 # Generate/read persistent UUID fingerprint (all tiers, not just community)
+# Uses a random UUID stored locally — not derived from hostname/user so it
+# can't be guessed or correlated by someone who knows your machine identity.
 INSTALL_FP=""
 FP_FILE="$STATE_DIR/.install-id"
 if [ -f "$FP_FILE" ]; then
   INSTALL_FP="$(cat "$FP_FILE" 2>/dev/null | tr -d '[:space:]')"
 fi
 if [ -z "$INSTALL_FP" ]; then
-  INSTALL_FP="$(uuidgen 2>/dev/null || cat /proc/sys/kernel/random/uuid 2>/dev/null || python3 -c 'import uuid; print(uuid.uuid4())' 2>/dev/null || echo "")"
-  INSTALL_FP="$(echo "$INSTALL_FP" | tr '[:upper:]' '[:lower:]')"  # normalize case
+  # Generate a random UUID v4
+  if command -v uuidgen >/dev/null 2>&1; then
+    INSTALL_FP="$(uuidgen | tr '[:upper:]' '[:lower:]')"
+  elif [ -r /proc/sys/kernel/random/uuid ]; then
+    INSTALL_FP="$(cat /proc/sys/kernel/random/uuid)"
+  else
+    # Fallback: random hex from /dev/urandom
+    INSTALL_FP="$(od -An -tx1 -N16 /dev/urandom 2>/dev/null | tr -d ' \n')"
+  fi
   if [ -n "$INSTALL_FP" ]; then
-    mkdir -p "$STATE_DIR"
-    echo "$INSTALL_FP" > "$FP_FILE"
+    mkdir -p "$STATE_DIR" 2>/dev/null
+    printf '%s' "$INSTALL_FP" > "$FP_FILE" 2>/dev/null
   fi
 fi