docs: update documentation and devlog for TalkBox fork and rebrand

- Updated CHANGELOG.md: added fork, rebrand, port isolation, and DCP workflow entries to Unreleased
- Updated project record: set TalkBox project identity, summary, and architecture tags
- Updated devlog index: set TalkBox devlog title and summary
- Added devlog entry 'fork-and-rebrand': initial fork, rebrand, port migration, and devlog workflow

.labyricorn/devlog/contents.lr

@@ -2,6 +2,6 @@ _model: devlog
 ---
 schema_version: 1
 ---
-title: Labyricorn Project Template development log
+title: TalkBox development log
 ---
-summary: Milestones and development log entries for the Labyricorn project template.
+summary: Milestones and development log entries for TalkBox, the local-first AI voice studio.

.labyricorn/devlog/fork-and-rebrand/contents.lr

@@ -0,0 +1,35 @@
+_model: devlog-entry
+---
+schema_version: 1
+---
+title: Forking and rebranding VoiceBox into TalkBox
+---
+date: 2026-08-24
+---
+author: Labyricorn
+---
+summary: Initial fork from upstream VoiceBox with a full codebase rebrand to TalkBox, updated port and bundle IDs, and integration of the .DCP documentation and publishing workflow.
+---
+tags: fork, rebrand, tts, mcp, devlog, release
+---
+source_commit: 7ad90d93a7b7fdfe97725bfc83bda228d266c657
+---
+body:
+
+TalkBox has been established as an independent fork of [VoiceBox](https://git.labyricorn.com/Labyricorn/voicebox) to serve as our customized local-first AI voice studio and MCP voice bridge.
+
+### Summary of Changes
+
+1. **Codebase Rebranding**:
+   - Replaced all naming across 205 files spanning frontend components (React/TypeScript), desktop harness (Tauri v2 / Rust), backend services (FastAPI/Python), documentation, and build scripts.
+   - Renamed core sidecar binaries to `talkbox-server` and `talkbox-mcp`.
+   - Updated database files to `talkbox.db` and environment variables to the `TALKBOX_*` namespace.
+
+2. **Network and Service Isolation**:
+   - Migrated the default backend and MCP HTTP port from `17493` to `17494` to enable concurrent execution alongside upstream VoiceBox instances without port collisions.
+   - Standardized the MCP tools namespace to `talkbox.speak`, `talkbox.transcribe`, `talkbox.list_captures`, and `talkbox.list_profiles`.
+   - Updated the client identifier header to `X-TalkBox-Client-Id`.
+
+3. **Labyricorn Publishing & Devlog Integration**:
+   - Restored and configured the repository's `.labyricorn/` publishing records and `devlog_editor.py` validator.
+   - Introduced the `.DCP` (Document, Commit, Push) shorthand command and automated skill workflow for continuous devlog maintenance and release tracking.

.labyricorn/project/contents.lr

@@ -2,26 +2,34 @@ _model: project
 ---
 schema_version: 1
 ---
-project_id: labyricorn-project-template
+project_id: talkbox
 ---
-title: Labyricorn Project Template
+title: TalkBox
 ---
 summary:
 
-Initial template and publishing structure for Labyricorn-compatible projects and development logs.
+Local-first AI voice studio for multi-engine speech generation, zero-shot voice cloning, global dictation, and MCP agent voice I/O.
 ---
 status: active
 ---
-started: 2026-08-23
+started: 2026-08-24
 ---
 author: Labyricorn
 ---
-repository_url: https://git.labyricorn.com/Labyricorn/labyricorn-project-template
+repository_url: https://git.labyricorn.com/Labyricorn/TalkBox
 ---
 default_branch: main
 ---
-tags: template, lektor, python
+tags: tts, voice-cloning, stt, whisper, mcp, tauri, react, fastapi, rust, python
 ---
 body:
 
-Starter template providing the standard .labyricorn/ publishing records, assistant instructions, devlog structure, and repository tooling for publication on Labyricorn.
+TalkBox is a local-first AI voice studio combining high-fidelity speech synthesis, zero-shot voice cloning, global dictation with synthetic paste, and Model Context Protocol (MCP) voice I/O.
+
+### Highlights
+
+- **Multi-Engine Speech Generation**: Supports 7 TTS engines (Qwen3-TTS, Qwen CustomVoice, LuxTTS, Chatterbox Multilingual, Chatterbox Turbo, HumeAI TADA, Kokoro) covering 23 languages.
+- **Voice Cloning & Profiles**: Zero-shot voice cloning from reference audio samples, custom effects chains, and personality prompt attachments.
+- **Global Dictation**: Whisper-backed push-to-talk and toggle dictation anywhere on macOS, Windows, and Linux with focus-aware automatic pasting.
+- **Agent Voice Output (MCP)**: Streamable HTTP and stdio MCP server (`http://127.0.0.1:17494/mcp`) exposing `talkbox.speak`, `talkbox.transcribe`, `talkbox.list_captures`, and `talkbox.list_profiles` for agent integrations.
+- **Native & Local Performance**: Built on Tauri v2 (Rust) and React/TypeScript frontend with Python FastAPI backend running locally on Apple Silicon (MLX), NVIDIA (CUDA), AMD (ROCm), DirectML, or CPU.

CHANGELOG.md

@@ -7,6 +7,17 @@
 
 ## [Unreleased]
 
+### Rebrand & Fork
+
+- **Forked and rebranded as TalkBox.** Full codebase rebrand across frontend, backend,
+  desktop harness (Tauri v2), and documentation.
+- **Port isolation.** Default backend/MCP server port moved from 17493 to 17494
+  to prevent conflicts when running alongside upstream VoiceBox.
+- **MCP tools namespace.** MCP tools namespaced under `talkbox.*` with client header
+  `X-TalkBox-Client-Id`.
+- **Labyricorn integration & `.DCP` workflow.** Restored `.labyricorn/` publishing
+  records, devlog tooling, and established the `.DCP` (Document, Commit, Push) workflow.
+
 ### Linux
 
 - **ROCm setup works on Linux AMD systems.** Docker ROCm builds now keep PyTorch