feat: rules and MCP fixes and UI updates

[RomneyDa]

Description

• New Tools section UI moves tool policies for an MCP server into the MCP server Tools section
• Hides settings Tools section resources and prompts if none are present, reduce confusion since Tools is the most common usage
• Changes ruleFile and promptFile to sourceFile for uniformity through the codebase
• Simplifies MCP disconnect logic to use a disabled status
• Fixes edit block opening wrong thing for mcp servers, rules, and prompts in various situations and unifies logic
• Fixes inaccurate parts of the init prompt
• Fixes navigation to settings pages from fatal error
• Fixes toggle switch click propagation
• Fixes various bad tailwind classname merging
• Removes unused Prompts section (was merged into rules)

Also deprecates gemini 1.5 models since they are no longer hosted on v1beta
e.g. https://github.com/continuedev/continue/actions/runs/18170217636/job/51722755412?pr=8053

---

Summary by cubic

Hide MCP Prompts and Resources in the Config > Tools view when none exist to reduce clutter and keep Tools as the focus. Aligns with CON-4022.

• New Features
  • Render Prompts only when server.prompts.length > 0.
  • Render Resources only when server.resources.length > 0 or server.resourceTemplates.length > 0.

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---

[RomneyDa]

reopening #8018 here because of odd failing tests

[cubic-dev-ai]

6 issues found across 62 files

Prompt for AI agents (all 6 issues)

Understand the root cause of the following 6 issues and fix them.


<file name="gui/src/components/mainInput/Lump/useEditBlock.ts">

<violation number="1" location="gui/src/components/mainInput/Lump/useEditBlock.ts:28">
This condition dereferences `selectedProfile.fullSlug` without guarding it, so profiles lacking `fullSlug` will crash the hook at runtime. Please add optional chaining (or another null check) before accessing `ownerSlug` and `packageSlug`.</violation>
</file>

<file name="core/context/providers/RulesContextProvider.ts">

<violation number="1" location="core/context/providers/RulesContextProvider.ts:25">
Using sourceFile as the primary ID collapses multiple rules from the same file into one submenu item. Please keep slug as the first fallback so each rule remains selectable.</violation>
</file>

<file name="gui/src/pages/config/components/ToolPoliciesGroup.tsx">

<violation number="1" location="gui/src/pages/config/components/ToolPoliciesGroup.tsx:34">
The memo that filters tools depends on groupName but the dependency array omits it, so switching this component to another group will leave it showing the previous group&#39;s tools. Please add groupName to the dependency array to keep the memoized list in sync.</violation>
</file>

<file name="core/config/profile/doLoadConfig.ts">

<violation number="1" location="core/config/profile/doLoadConfig.ts:175">
`newConfig.slashCommands` can be undefined when the user config has no slash commands, so pushing to it here will throw. Guard with the same `??=` initialization used elsewhere before pushing.</violation>
</file>

<file name="core/context/mcp/MCPManagerSingleton.ts">

<violation number="1" location="core/context/mcp/MCPManagerSingleton.ts:30">
Disabling a server calls `conn.disconnect(true)` even when no transport has been set, so `this.transport.close()` throws if the user disables before the first successful connect. Please guard against this scenario before invoking `disconnect(true)`.</violation>
</file>

<file name="packages/config-yaml/src/markdown/markdownToRule.ts">

<violation number="1" location="packages/config-yaml/src/markdown/markdownToRule.ts:74">
If relativeDir is undefined you now return the frontmatter globs untouched, but existing callers (e.g. markdownToRule(content, id) in load/unroll.ts) do not pass the new relativePathForGlobs. For file rules without explicit globs this used to default to `&lt;rule-dir&gt;/**/*`; now it yields undefined so the rule never matches any files.</violation>
</file>

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[sestinj]

🎉 This PR is included in version 1.24.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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[sestinj]

🎉 This PR is included in version 1.21.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[sestinj]

🎉 This PR is included in version 1.2.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀