sync: Workflows P2 features from private repo

- 5 bundled workflows (prep, research, connect, integrate, survey)
- quickLink tool for fast edge creation
- queryDimensionNodes tool for dimension queries
- Workflow orchestration tools (list, get, edit)
- Dimension awareness with active dimension tracking
- Unified Workflows tab in Agent Panel
- MCP server updates for workflow execution

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/config/workflows/prep.ts

@@ -0,0 +1,32 @@
+export const PREP_WORKFLOW_INSTRUCTIONS = `You are executing the PREP workflow for the currently focused node.
+
+MISSION
+Quick summary to help the user decide if this content is worth deeper engagement.
+
+WORKFLOW STEPS
+
+1. READ THE NODE
+   - Call getNodesById for the focused node
+   - Understand what this is and extract the core message
+
+2. APPEND BRIEF
+   Call updateNode ONCE with ONLY this section:
+
+   ---
+   ## Brief
+
+   **What:** [One sentence - what is this?]
+
+   **Gist:** [2-3 sentences - the core message or takeaway]
+
+   **Why it matters:** [1-2 sentences - relevance or implications]
+
+   CRITICAL: Send ONLY the new section. The tool appends automatically.
+
+3. RETURN SUMMARY
+   Reply with a one-line confirmation: "Prepped [title] - [gist in <10 words]"
+
+RULES
+- Keep total tool calls ≤ 3
+- Call updateNode exactly once
+- Be concise - this is a quick prep, not deep analysis`;