Merge remote-tracking branch 'origin/master' into worktree/session-reference

# Conflicts:
#	docs/capability-seams.md
#	docs/config-catalog.md
#	docs/cordis-catalog/services.md
#	docs/module-graph.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
#	packages/cordis/tool-cordis/src/api-catalog.ts
#	packages/ui/acp/README.md
#	packages/ui/acp/package.json
#	packages/ui/acp/tsconfig.json
#	packages/ui/tui/package.json
#	packages/ui/tui/src/index.ts
#	packages/ui/tui/tests/tui.spec.ts
#	packages/ui/tui/tsconfig.json
#	pnpm-lock.yaml
#	python/sdk-runtime/package.json
#	scripts/gen-doc-graphs.ts
#	scripts/type-equiv.manifest.json

packages/compact/compact-basic/src/region.ts

@@ -4,6 +4,7 @@
  * @module @deepseek-ai/dsh-compact-basic/region
  */
 
+import { isDeepStrictEqual } from 'node:util'
 import {
   COMPACT_CHECKPOINT_SOURCE,
   toolPairingBalancedAfter,
@@ -114,8 +115,8 @@ export async function compactSurfaceRegion(
   const shadowedSeqs = nodes.slice(startIdx, endIdx + 1)
   const startEvent = session.append('compact/start', { turn: tail.turn })
   try {
-    // Capture after the lock event so any later durable append, including a
-    // log-only one, invalidates the async selection before replacement.
+    // Capture after the lock event so a later surface mutation invalidates the
+    // async selection before replacement. Unrelated log-only facts may append.
     const lockedMeasurement = dependencies.meter.measure(session)
     const selected = lockedMeasurement.nodes.slice(startIdx, endIdx + 1)
     if (selected.length !== shadowedSeqs.length
@@ -127,8 +128,8 @@ export async function compactSurfaceRegion(
     const { summary, provider, model, maxTokens } = await dependencies.summarize(summarizationInput, agent, signal)
 
     const currentMeasurement = dependencies.meter.measure(session)
-    if (currentMeasurement.logRevision !== lockedMeasurement.logRevision) {
-      throw new Error('compaction: session log changed during summarization')
+    if (!isDeepStrictEqual(currentMeasurement.nodes, lockedMeasurement.nodes)) {
+      throw new Error('compaction: session surface changed during summarization')
     }
     const framedSummary = frameSummary(summary)
     const framedSummaryTokenCount = dependencies.meter.estimateMessage({