feat(pi): add persistent Mosaic goal controller

packages/mosaic/framework/tools/quality/scripts/test-install-migration.sh

@@ -26,6 +26,9 @@ chk "F1 fresh: CONSTITUTION/AGENTS/STANDARDS/TOOLS seeded" \
   "[ -f '$T1/CONSTITUTION.md' ] && [ -f '$T1/AGENTS.md' ] && [ -f '$T1/STANDARDS.md' ] && [ -f '$T1/TOOLS.md' ]"
 chk "F1 fresh: AGENTS == shipped default" "cmp -s '$T1/AGENTS.md' '$DEFA/AGENTS.md'"
 chk "F1 fresh: framework-version stamped 3" "[ \"\$(cat '$T1/.framework-version' 2>/dev/null)\" = 3 ]"
+chk "F1 fresh: Pi goal extension deploys under Mosaic runtime" \
+  "cmp -s '$T1/runtime/pi/goal-extension.ts' '$FW/runtime/pi/goal-extension.ts'"
+chk "F1 fresh: installer creates no nested main Pi config" "[ ! -e '$T1/.pi' ]"
 
 # F2 — legacy install with a user-edited AGENTS.md (the sanctioned pre-constitution customization)
 T2=$(mktemp -d); mkdir -p "$T2/credentials"
@@ -89,6 +92,8 @@ chk "F6 reseed: per-agent env bytes survive" "cmp -s '$T6/fleet/agents/coder0.en
 chk "F6 reseed: heartbeat bytes survive" "cmp -s '$T6/fleet/run/coder0.hb' '$E6/run.expected'"
 chk "F6 reseed: framework examples are refreshed" "grep -q orchestrator '$T6/fleet/examples/general.yaml'"
 chk "F6 reseed: framework roster schema is refreshed" "cmp -s '$T6/fleet/roster.schema.json' '$FW/fleet/roster.schema.json'"
+chk "F6 reseed: Pi goal extension is refreshed from framework source" \
+  "cmp -s '$T6/runtime/pi/goal-extension.ts' '$FW/runtime/pi/goal-extension.ts'"
 
 rm -rf "$T1" "$T2" "$T3" "$T4" "$T5" "$T6" "$E6"
 echo