Disposition-filtered sync of 251 upstream files:
- 145 INCLUDE files applied (with rebrand transforms)
- 62 EXCLUDE files dropped (gutted subsystems)
- 21 EXTRACT files: safe upstream changes ported, gutted-module imports skipped
- 5 COLLISION files: 3 adopted (imports resolve), 2 skipped (deps on diverged code)
- 8 upstream deletions applied (Anthropic OAuth removed, PR_STATUS.md)
- 10 PROTECTED files reviewed for security: browser hardening + line lifecycle ported

Key upstream changes ported:
- Security: browser symlink-safe path resolution, tmp dir trust validation,
  CWD symlink denial, exec path canonicalization, workspace file symlink safety
- Telegram: webhook refactoring, centralized event authorization, group allow
  separated from DM pairing store
- Discord: reaction ingress authorization, gateway early error guard
- Cron: deliveryAttempted tracking, session maintenance
- Line: abort lifecycle hardening
- Android: voice tab, mic capture, startup benchmarks
- macOS: Anthropic OAuth removed (upstream + fork dead code cleanup)
- Infra: accountId auto-resolve, context overflow surfacing
- Config: agent runtime, session schema updates
- Docs: heartbeat DM policy, reaction auth controls

EXTRACT skipped (upstream changes depend on gutted modules):
- subagent-announce: dispatch extraction to subagent-announce-dispatch.js
- nodes-tool: formatExecCommand from system-run-command.js
- cron/run: model override fallback resolution
- doctor-auth: noteAuthProfileHealth refactoring (resolveUnusableProfileHint ported)

Upstream-range: ed34129..4b5d4a4
Upstream-boundary: v2026.2.25
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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>