feat: [gem-team] Add confidence metric, optimize planner workflow (#1695)

* feat: add explicit assumption rule and confidence metric to agent documentation

- Add `confidence` field (0‑1) to the output schema in `agents/gem-browser-tester.agent.md`
- Include `confidence` in the `extra` object of `agents/gem-devops.agent.md`
- Append the guideline “State assumptions explicitly; never guess silently” to all agent docs
- Update the “Bisect (Complex Only)” heading to reflect its gate condition
- Minor wording and formatting adjustments across the affected agent documents

* chore: update readme

* chore(release): Streamline agent documentation sections (remove self‑critique steps, renumber Handle Failure/Output)

plugins/gem-team/README.md

@@ -2,8 +2,6 @@
 
 Self-Learning Multi-agent orchestration harness for spec-driven development and automated verification.
 
-[![Support Me](https://img.shields.io/badge/patreon-000000?logo=patreon&logoColor=FFFFFF&style=flat)](https://patreon.com/mubaidr)
-
 ## Quick Start
 
 ```bash
@@ -268,13 +266,13 @@ cp -r .apm/agents <destination>
 
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-### VS Code Extension (GitHub Copilot)
+### VS Code (GitHub Copilot)
 
-Search for "gem-team" in the VS Code Extensions marketplace.
+Search for "gem-team" in the VS Code Chat marketplace.
 
 1. Open VS Code
-2. Go to Extensions (Ctrl+Shift+X)
-3. Search "gem-team"
+2. Go to Chat Settings
+3. Search "gem-team" in agents or plugins marketplace
 4. Click Install
 
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