build: PaddedCell-style install.mjs + SDK-aligned packaging

install.mjs (--install/--build-only/--uninstall/--openclaw-profile-path),
tsconfig outDir dist/fabric, package.json openclaw file dep + main.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

dist/fabric/src/identity.js

@@ -0,0 +1,40 @@
+import { readFileSync, writeFileSync, existsSync, mkdirSync } from 'node:fs';
+import { dirname } from 'node:path';
+export class IdentityRegistry {
+    filePath;
+    entries = new Map();
+    constructor(filePath) {
+        this.filePath = filePath;
+        this.load();
+    }
+    load() {
+        if (!existsSync(this.filePath))
+            return;
+        try {
+            const data = JSON.parse(readFileSync(this.filePath, 'utf8'));
+            for (const e of data.entries ?? []) {
+                if (e.agentId && e.fabricApiKey)
+                    this.entries.set(e.agentId, e);
+            }
+        }
+        catch {
+            // corrupt file -> start empty; upsert will rewrite
+        }
+    }
+    persist() {
+        mkdirSync(dirname(this.filePath), { recursive: true });
+        const data = { entries: [...this.entries.values()] };
+        writeFileSync(this.filePath, JSON.stringify(data, null, 2));
+    }
+    list() {
+        return [...this.entries.values()];
+    }
+    findByAgentId(agentId) {
+        return this.entries.get(agentId);
+    }
+    upsert(entry) {
+        const prev = this.entries.get(entry.agentId);
+        this.entries.set(entry.agentId, { ...prev, ...entry });
+        this.persist();
+    }
+}