Expand model tag support: add GLM-5.1, simplify Anthropic IDs, scan tags anywhere in message

- Flink update_bars debouncing
- update_bars subscription idempotency bugfix
- Price decimal correction bugfix of previous commit
- Add GLM-5.1 model tag alongside renamed GLM-5
- Use short Anthropic model IDs (sonnet/haiku/opus) instead of full version strings
- Allow @tags anywhere in message content, not just at start
- Return hasOtherContent flag instead of trimmed rest string
- Only trigger greeting stream when tag has no other content
- Update workspace knowledge base references to platform/workspace and platform/shapes
- Hierarchical knowledge base catalog
- 151 Trading Strategies knowledge base articles
- Shapes knowledge base article
- MutateShapes tool instead of workspace patch

gateway/prompt/tools.md

@@ -17,8 +17,9 @@ Available to all agents:
 
 | Tool | Purpose |
 |------|---------|
-| `WorkspacePatch` | Apply a JSON patch to a workspace store |
+| `WorkspacePatch` | Apply a JSON patch to a workspace store (use `ShapesMutate` for chart shapes) |
 | `WorkspaceRead` | Read the current state of a workspace store |
+| `ShapesMutate` | Add, update, or remove chart drawings (trend lines, Fibonacci, rectangles, etc.) |
 | `PythonList` | List existing scripts by category (`strategy`, `indicator`, or `research`) |
 | `SymbolLookup` | Resolve a ticker to the correct `SYMBOL.EXCHANGE` format |
 | `GetChartData` | Fetch raw OHLC data (casual retrieval only — use `Spawn` research for analysis) |
@@ -29,7 +30,7 @@ Available to all agents:
 
 ## MCP Tools (user sandbox)
 
-Available to all agents. These run in the user's per-session sandbox container:
+Available to all agents. These run in the user's sandbox container:
 
 | Tool | Purpose |
 |------|---------|