refactor: remove search_surfsense_docs tool and related references

- Deleted the `search_surfsense_docs` tool and its associated files, streamlining the agent's toolset.
- Updated various components and prompts to remove references to the now-removed tool, ensuring consistency across the codebase.
- Adjusted documentation to direct users to the SurfSense documentation link for product-related queries instead.

surfsense_backend/app/agents/new_chat/prompts/base/citations_on.md

@@ -59,14 +59,13 @@ Do NOT cite document_id. Always use the chunk id.
 - NEVER create your own citation format - use the exact chunk_id values from the documents in the [citation:chunk_id] format
 - NEVER format citations as clickable links or as markdown links like "([citation:5](https://example.com))". Always use plain square brackets only
 - NEVER make up chunk IDs if you are unsure about the chunk_id. It is better to omit the citation than to guess
-- Copy the EXACT chunk id from the XML - if it says `<chunk id='doc-123'>`, use [citation:doc-123]
+- Copy the EXACT chunk id from the XML - if it says `<chunk id='5'>`, use [citation:5]
 - If the chunk id is a URL like `<chunk id='https://example.com/page'>`, use [citation:https://example.com/page]
 </citation_format>
 
 <citation_examples>
 CORRECT citation formats:
 - [citation:5] (numeric chunk ID from knowledge base)
-- [citation:doc-123] (for Surfsense documentation chunks)
 - [citation:https://example.com/article] (URL chunk ID from web search results)
 - [citation:chunk_id1], [citation:chunk_id2], [citation:chunk_id3] (multiple citations)
 

surfsense_backend/app/agents/new_chat/prompts/base/kb_only_policy_private.md

@@ -7,7 +7,7 @@ CRITICAL RULE — KNOWLEDGE BASE FIRST, NEVER DEFAULT TO GENERAL KNOWLEDGE:
   2. Ask the user: "Would you like me to answer from my general knowledge instead?"
   3. ONLY provide a general-knowledge answer AFTER the user explicitly says yes.
 - This policy does NOT apply to:
-  * Casual conversation, greetings, or meta-questions about SurfSense itself (e.g., "what can you do?")
+  * Casual conversation, greetings, or meta-questions about SurfSense itself (e.g., "what can you do?"). For "how do I use SurfSense" / product-documentation questions, point the user to https://www.surfsense.com/docs.
   * Formatting, summarization, or analysis of content already present in the conversation
   * Following user instructions that are clearly task-oriented (e.g., "rewrite this in bullet points")
   * Tool-usage actions like generating reports, podcasts, images, or scraping webpages

surfsense_backend/app/agents/new_chat/prompts/base/kb_only_policy_team.md

@@ -7,7 +7,7 @@ CRITICAL RULE — KNOWLEDGE BASE FIRST, NEVER DEFAULT TO GENERAL KNOWLEDGE:
   2. Ask: "Would you like me to answer from my general knowledge instead?"
   3. ONLY provide a general-knowledge answer AFTER a team member explicitly says yes.
 - This policy does NOT apply to:
-  * Casual conversation, greetings, or meta-questions about SurfSense itself (e.g., "what can you do?")
+  * Casual conversation, greetings, or meta-questions about SurfSense itself (e.g., "what can you do?"). For "how do I use SurfSense" / product-documentation questions, point the user to https://www.surfsense.com/docs.
   * Formatting, summarization, or analysis of content already present in the conversation
   * Following user instructions that are clearly task-oriented (e.g., "rewrite this in bullet points")
   * Tool-usage actions like generating reports, podcasts, images, or scraping webpages

surfsense_backend/app/agents/new_chat/prompts/base/tool_routing_private.md

@@ -13,6 +13,7 @@ When to use which tool:
 - Knowledge base content (Notion, GitHub, files, notes) → automatically searched
 - Real-time public web data → call web_search
 - Reading a specific webpage → call scrape_webpage
+- SurfSense product / how-to questions (setup, configuration, connectors, feature behavior) → point the user to the documentation: https://www.surfsense.com/docs
 
 **`task` subagents (when to delegate):**
 - **`linear_specialist`** — Linear-only investigations and tool use.

surfsense_backend/app/agents/new_chat/prompts/base/tool_routing_team.md

@@ -13,6 +13,7 @@ When to use which tool:
 - Knowledge base content (Notion, GitHub, files, notes) → automatically searched
 - Real-time public web data → call web_search
 - Reading a specific webpage → call scrape_webpage
+- SurfSense product / how-to questions (setup, configuration, connectors, feature behavior) → point the user to the documentation: https://www.surfsense.com/docs
 
 **`task` subagents (when to delegate):**
 - **`linear_specialist`** — Linear-only investigations and tool use.