docs(changelog): sync new release entries

content/changelog/v1-0-0-alpha-20.mdx

@@ -0,0 +1,35 @@
+---
+title: "v1.0.0-alpha.20"
+description: "Spawn codex agent."
+date: "2026-07-06"
+version: "v1.0.0-alpha.20"
+tags: ["features","fixes","docs"]
+---
+
+{/* AUTO-GENERATED DRAFT from bitrouter/bitrouter release v1.0.0-alpha.20.
+    Curate the title, description and prose below, then merge.
+    Re-running the sync will NOT overwrite this file. */}
+
+### ⛰️ Features
+
+- *(cli)* Spawn codex agent ([#631](https://github.com/bitrouter/bitrouter/pull/631))
+- *(cli)* Route `update` through the JSON output layer ([#620](https://github.com/bitrouter/bitrouter/pull/620))
+- *(cli)* JSON output layer with a uniform error envelope ([#610](https://github.com/bitrouter/bitrouter/pull/610))
+- *(server-tools)* Built-in web_fetch tool (BYOK) ([#612](https://github.com/bitrouter/bitrouter/pull/612))
+- *(server-tools)* Add Tavily web_search backend, drop Perplexity ([#608](https://github.com/bitrouter/bitrouter/pull/608))
+- *(server-tools)* Built-in web_search with BYOK backends ([#603](https://github.com/bitrouter/bitrouter/pull/603))
+- *(update)* Add bitrouter update self-updater ([#607](https://github.com/bitrouter/bitrouter/pull/607))
+
+### 🐛 Bug Fixes
+
+- *(codex)* Harden Codex spawn checks ([#632](https://github.com/bitrouter/bitrouter/pull/632))
+- *(config)* Don't expand ${VAR} inside YAML comments ([#609](https://github.com/bitrouter/bitrouter/pull/609))
+- *(observe)* Stop the settle span double-counting as a telemetry event ([#605](https://github.com/bitrouter/bitrouter/pull/605))
+
+### 📚 Documentation
+
+- Align docs with current CLI ([#637](https://github.com/bitrouter/bitrouter/pull/637))
+
+### ⚙️ Miscellaneous Tasks
+
+- Migrate registry into OSS dist ([#636](https://github.com/bitrouter/bitrouter/pull/636))

content/changelog/v1-0-0-alpha-21.mdx

@@ -0,0 +1,20 @@
+---
+title: "v1.0.0-alpha.21"
+description: "Make registry dist runtime-only."
+date: "2026-07-07"
+version: "v1.0.0-alpha.21"
+tags: ["features","fixes"]
+---
+
+{/* AUTO-GENERATED DRAFT from bitrouter/bitrouter release v1.0.0-alpha.21.
+    Curate the title, description and prose below, then merge.
+    Re-running the sync will NOT overwrite this file. */}
+
+### ⛰️ Features
+
+- Make registry dist runtime-only ([#641](https://github.com/bitrouter/bitrouter/pull/641))
+- Refactor registry provider variants ([#639](https://github.com/bitrouter/bitrouter/pull/639))
+
+### 🐛 Bug Fixes
+
+- Preserve stream error settlement ([#656](https://github.com/bitrouter/bitrouter/pull/656))

content/changelog/v1-0-0-alpha-22.mdx

@@ -0,0 +1,20 @@
+---
+title: "v1.0.0-alpha.22"
+description: "Make registry dist runtime-only."
+date: "2026-07-09"
+version: "v1.0.0-alpha.22"
+tags: ["features","fixes"]
+---
+
+{/* AUTO-GENERATED DRAFT from bitrouter/bitrouter release v1.0.0-alpha.22.
+    Curate the title, description and prose below, then merge.
+    Re-running the sync will NOT overwrite this file. */}
+
+### ⛰️ Features
+
+- Make registry dist runtime-only ([#641](https://github.com/bitrouter/bitrouter/pull/641))
+- Refactor registry provider variants ([#639](https://github.com/bitrouter/bitrouter/pull/639))
+
+### 🐛 Bug Fixes
+
+- Preserve stream error settlement ([#656](https://github.com/bitrouter/bitrouter/pull/656))

content/changelog/v1-0-0-alpha-23.mdx

@@ -0,0 +1,22 @@
+---
+title: "v1.0.0-alpha.23"
+description: "Add pi-acp to the ACP catalog."
+date: "2026-07-11"
+version: "v1.0.0-alpha.23"
+tags: ["features","fixes"]
+---
+
+{/* AUTO-GENERATED DRAFT from bitrouter/bitrouter release v1.0.0-alpha.23.
+    Curate the title, description and prose below, then merge.
+    Re-running the sync will NOT overwrite this file. */}
+
+### ⛰️ Features
+
+- *(agents)* Add pi-acp to the ACP catalog ([#685](https://github.com/bitrouter/bitrouter/pull/685))
+- *(providers)* Add SuperGrok BYO subscription ([#676](https://github.com/bitrouter/bitrouter/pull/676))
+- Ship Claude Code and Codex agent plugins ([#683](https://github.com/bitrouter/bitrouter/pull/683))
+- Add AWS Bedrock, Azure, Vertex built-in providers ([#647](https://github.com/bitrouter/bitrouter/pull/647))
+
+### 🐛 Bug Fixes
+
+- *(sdk)* Preserve token limits and upstream errors ([#692](https://github.com/bitrouter/bitrouter/pull/692))

content/changelog/v1-0-0-alpha-24.mdx

@@ -0,0 +1,17 @@
+---
+title: "v1.0.0-alpha.24"
+description: "Preserve streaming preflight errors."
+date: "2026-07-11"
+version: "v1.0.0-alpha.24"
+tags: ["fixes"]
+---
+
+{/* AUTO-GENERATED DRAFT from bitrouter/bitrouter release v1.0.0-alpha.24.
+    Curate the title, description and prose below, then merge.
+    Re-running the sync will NOT overwrite this file. */}
+
+### 🐛 Bug Fixes
+
+- *(sdk)* Preserve streaming preflight errors ([#696](https://github.com/bitrouter/bitrouter/pull/696))
+- *(update)* Detect npm installs in self-updater ([#689](https://github.com/bitrouter/bitrouter/pull/689))
+- Record canonical stream timing and OTEL latency ([#697](https://github.com/bitrouter/bitrouter/pull/697))

content/changelog/v1-0-0-alpha-25.mdx

@@ -0,0 +1,15 @@
+---
+title: "v1.0.0-alpha.25"
+description: "Refresh Rust dependencies and MSRV."
+date: "2026-07-12"
+version: "v1.0.0-alpha.25"
+tags: []
+---
+
+{/* AUTO-GENERATED DRAFT from bitrouter/bitrouter release v1.0.0-alpha.25.
+    Curate the title, description and prose below, then merge.
+    Re-running the sync will NOT overwrite this file. */}
+
+### ⚙️ Miscellaneous Tasks
+
+- Refresh Rust dependencies and MSRV ([#699](https://github.com/bitrouter/bitrouter/pull/699))