feat(agents): integrate isolated Pi conversion foundation from PR 3022

Carry the canonical IR, Pi emitter and source-schema doctor from https://github.com/affaan-m/ECC/pull/3022. Cursor and OpenCode emitters remain with the open source PR pending capability fixes.

Co-authored-by: alizahidraja <alizahidrajaa@gmail.com>

tests/scripts/npm-publish-surface.test.js

@@ -67,6 +67,7 @@ function buildExpectedPublishPaths(repoRoot) {
     "scripts/eval-harness.js",
     "examples/eval-harness",
     "scripts/feedback.js",
+    "scripts/agent-convert.js",
     "scripts/catalog.js",
     "scripts/ci/scan-supply-chain-iocs.js",
     "scripts/ci/supply-chain-advisory-sources.js",
@@ -303,6 +304,11 @@ function main() {
         "skills/backend-patterns/SKILL.md",
         "skills/skill-comply/SKILL.md",
         "skills/unified-memory/SKILL.md",
+        "scripts/agent-convert.js",
+        "scripts/lib/agent-ir.js",
+        "scripts/lib/agent-tool-map.js",
+        "scripts/lib/agent-emit-pi.js",
+        "schemas/agent.schema.json",
       ]) {
         assert.ok(
           packagedPaths.has(requiredPath),