fix: resolve 25 pre-publish blockers

- postinstall.mjs: fix alias package detection
- migrate-legacy-plugin-entry: dedupe + regression tests
- task_system: default consistency across runtime paths
- task() contract: consistent tool behavior
- runtime model selection, tool cap, stale-task cancellation
- recovery sanitization, context-limit gating
- Ralph semantic DONE hardening, Atlas fallback persistence
- native-skill description/content, skill path traversal guard
- publish workflow: platform awaited via reusable workflow job
- release: version edits reapplied before commit/tag
- JSONC plugin migration: top-level plugin key safety
- cold-cache: user fallback models skip disconnected providers
- docs/version/release framing updates

Verified: bun test (4599 pass), tsc --noEmit clean, bun run build clean

src/hooks/anthropic-context-window-limit-recovery/message-builder.ts

@@ -8,7 +8,7 @@ import {
   injectTextPart,
   replaceEmptyTextParts,
 } from "../session-recovery/storage"
-import { replaceEmptyTextPartsAsync } from "../session-recovery/storage/empty-text"
+import { findMessagesWithEmptyTextPartsFromSDK, replaceEmptyTextPartsAsync } from "../session-recovery/storage/empty-text"
 import { injectTextPartAsync } from "../session-recovery/storage/text-part-injector"
 import type { Client } from "./client"
 
@@ -86,12 +86,14 @@ export async function sanitizeEmptyMessagesBeforeSummarize(
 ): Promise<number> {
   if (client && isSqliteBackend()) {
     const emptyMessageIds = await findEmptyMessageIdsFromSDK(client, sessionID)
-    if (emptyMessageIds.length === 0) {
+    const emptyTextPartIds = await findMessagesWithEmptyTextPartsFromSDK(client, sessionID)
+    const allIds = [...new Set([...emptyMessageIds, ...emptyTextPartIds])]
+    if (allIds.length === 0) {
       return 0
     }
 
     let fixedCount = 0
-    for (const messageID of emptyMessageIds) {
+    for (const messageID of allIds) {
       const replaced = await replaceEmptyTextPartsAsync(client, sessionID, messageID, PLACEHOLDER_TEXT)
       if (replaced) {
         fixedCount++
@@ -107,7 +109,7 @@ export async function sanitizeEmptyMessagesBeforeSummarize(
       log("[auto-compact] pre-summarize sanitization fixed empty messages", {
         sessionID,
         fixedCount,
-        totalEmpty: emptyMessageIds.length,
+        totalEmpty: allIds.length,
       })
     }