feat(tool-search): expand dynamic group activation

pi-tool-search/CHANGELOG.md

@@ -16,9 +16,15 @@
 - Added sequential `ssh_cd` to the authoritative remote-shell workflow and direct the model to wait for a successful workspace change before dependent remote calls, avoiding both the unknown-tools fallback and cwd races.
 - Added the authoritative `user-interaction` group for the maintained `ask_user_question` TUI tool.
 - Added authoritative `chrome-navigation`, `chrome-interaction`, and `chrome-debugging` groups for all 21 tools registered by the pinned `pi-chrome` bridge after explicit session authorization.
+- Raised the bundle defaults to five active groups and 28 dynamic tools, and pinned the high-frequency Context Mode execution trio alongside CodeGraph exploration and LSP diagnostics.
+- Added atomic multi-group activation through `tool_search.groups`, bounded to five exact group ids and rejected without state changes when the complete workflow cannot fit.
+- Weighted exact tool names, group metadata, and common SSH/Chrome/Context aliases during query routing; weak or ambiguous matches now return candidates instead of activating arbitrarily.
+- Added `/tool-search-status` for catalog source, capacity, active-group LRU order, and latest eviction diagnostics.
+- Added an explicit `update.sh` migration for the complete former `3`/`20` bundle-default snapshot, with owner-only backup, atomic replacement, provenance versioning, and fail-safe preservation of custom or invalid user settings.
 ### Fixed
 - Treat Pi's optional `powershell` definition as the same pinned local-shell/core class as `bash` on Windows, while excluding it from non-Windows catalogs so it cannot become an unknown-tool model group.
 - Activate exact existing groups from the current catalog before optional unknown-tool model enrichment, preventing unrelated catalog generation from delaying known group loads.
+- Include pinned tools in the optional footer's total-tool denominator.
 
 
 ## [0.3.6] - 2026-04-24