chore: prepare v1.10.1 stable release

docs/releases/1.10.1/release-notes.md

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+# ECC v1.10.1 Release Notes
+
+## Positioning
+
+ECC v1.10.1 is a stable-channel reliability patch.
+
+This release keeps the public `latest` line moving while the larger ECC 2.0 control-plane, dedicated ECC agent, and agentic IDE work remains on the prerelease track.
+
+## What Changed
+
+- Hardened harness auditing around missing or malformed package metadata.
+- Increased the continuous-learning observer default turn budget so the default 500-line analysis window has enough room to complete.
+- Added an explicit warning when legacy `~/.claude/homunculus` data exists but the current CLI is reading from the XDG-based ECC data path.
+- Fixed `/instinct-status` plugin-root resolution so the command does not fall back to stale legacy install paths.
+- Updated contribution and translated marketplace links to the current `affaan-m/ECC` public repo surface.
+
+## ECC 2.0 Status
+
+ECC 2.0 is still a prerelease lane.
+
+The stable `1.10.x` line remains the right public install surface for users who want the current meta-harness, skills, rules, hooks, commands, and cross-harness install story without opting into the next control-plane generation.
+
+The `2.0.0-rc` line is where the larger product vision belongs:
+
+- meta-harness
+- dedicated ECC agent
+- control pane / agentic IDE
+- multi-harness operating layer
+- stronger evaluation, memory, and permission boundaries
+
+## Upgrade
+
+```bash
+npm install -g ecc-universal@1.10.1
+```
+
+or:
+
+```bash
+npx ecc-universal@1.10.1 install --profile developer
+```