docs: add final readiness report / 新增最終成熟度與可交付判定報告

reports/final-readiness-report.md

@@ -0,0 +1,109 @@
+# reply-end-controls - Final Readiness Report
+
+- Date: 2026-05-13
+- Scope: Telegram-only, OpenClaw-backed implementation path
+
+## Final question
+
+Can this project now be handed to another AI agent for direct use?
+
+## Final answer
+
+Yes — with an important qualifier.
+
+It is ready for another agent to **directly use in controlled engineering conditions**, meaning:
+
+- the other agent can understand the project from repo docs
+- the other agent can apply the current PoC patch flow
+- the other agent can verify the live OpenClaw Telegram behavior
+- the other agent can roll the patch back
+
+It is **not yet** a clean general-purpose installable plugin package that should be described as fully productized or fully transport-agnostic.
+
+## Why it is ready enough for direct agent use
+
+### 1. Functional proof exists
+
+The project has already proven on a real Telegram chat that it can:
+
+- attach reply-end buttons to assistant replies
+- receive callback clicks
+- persist reply-end state
+- change button UI after clicks
+- send visible callback acknowledgements
+- influence later assistant behavior based on stored `continue/stop` state
+
+### 2. Reproducibility exists
+
+The project now provides explicit scripts for:
+
+- apply
+- rollback
+- verify
+- refresh
+
+This means another agent does not need to reconstruct the integration path from memory or from the full chat history.
+
+### 3. Handoff documentation exists
+
+The project now contains:
+
+- `HANDOFF.md`
+- `INTEGRATION.md`
+- patch inventory and patch mapping
+- PoC success report
+- pluginization status report
+- next-phase plan
+
+This is enough for another agent to understand what exists, what is patched, what still needs cleanup, and how to proceed.
+
+### 4. Repo-side ownership now exists
+
+The project is no longer just a successful runtime patch.
+
+It now has repo-side ownership for:
+
+- config values
+- state model
+- state store
+- callback contract
+- stop/continue policy
+- Telegram helper logic
+- OpenClaw bridge/helper logic
+- patch contract logic
+- unit tests
+
+That means another agent is not forced to treat the runtime patch as the only source of truth.
+
+## What the readiness level is not
+
+This project is **not yet**:
+
+- a general installable package for all runtimes
+- a multi-channel feature
+- a fully patch-free OpenClaw integration
+- a final production-ready release
+
+So the correct label is not “fully finished product.”
+
+The correct label is closer to:
+
+- **directly usable by another engineering agent**
+- **reproducible Telegram/OpenClaw integration PoC**
+- **structured enough for continued implementation without the original author present**
+
+## Readiness level
+
+Current readiness can be described as:
+
+- `handoff-ready`: yes
+- `engineering-agent-usable`: yes
+- `reproducible`: yes
+- `productized`: not fully
+- `general-purpose plugin package`: not yet
+
+## Final judgment
+
+This project can now be handed to another AI agent for direct use **as an engineering integration project**.
+
+It should not yet be marketed as a fully finished plugin package, but it has crossed the threshold from experimental PoC to reusable, reproducible, agent-consumable implementation work.