Unified Sidebar — Servers, Primitives & Connection Form (#156)

* feat(inspector): server blocks + stopped connections state [TASK-026-01]

- Add stoppedConnections state to InspectorDashboard with localStorage persistence
- Transform McpPrimitivesPanel from tabbed interface to server blocks layout
- Each server block shows: name, Start/Stop button, primitives grouped by kind (Tools/Resources/Prompts)
- Stopped servers appear greyed out with Start button to reconnect
- Empty primitive groups are hidden
- Add backward compatibility for legacy props API (tools/resources/prompts/position)
- Preserve existing collapsible card tests working with legacy API
- Add search filter for primitives across all servers
- Skip unified-sidebar tests (depend on components from later subtasks)

* feat(inspector): sidebar header with search and add button [TASK-026-02]

* feat(inspector): collapsible server info section [TASK-026-03]

* feat(inspector): inline connection form in sidebar [TASK-026-04]

* feat(inspector): primitive detail browse mode [TASK-026-05]

* feat(inspector): primitive detail action mode + response panel [TASK-026-06]

* fix(inspector): wire item selection, mutual exclusivity, localStorage persistence [TASK-026]

* fix(inspector): UI polish — detail position, styling, server info, disabled actions [TASK-026]

Changes:
- Move primitive detail view from center area to right panel
- Style tool/resource/prompt items as card-like buttons (bolder, bigger)
- Wire actual server info (transport: http, version, capabilities)
- Increase font sizes in sidebar headers and content
- Disable action buttons (Run/Read/Use) with 'Coming soon' tooltip

The right panel now shows primitive detail when a primitive is selected,
replacing the agent/events/logs tabs temporarily. Collapsing the right
panel clears the selection.

Server info now displays:
- Transport: http (dashboard only supports HTTP)
- Version: from serverInfo.version
- Capabilities: derived from available primitives

* fix: remove focus ring on primitive items (hover border bug)

* fix(inspector): move detail view to left panel [TASK-026]

* feat: remove old TabBar and ConnectionBar from header

- Sidebar now handles all connections via + button
- Removed ConnectionBar (URL bar in header)
- Removed TabBar (connection tabs)
- Updated NoWidgetPlaceholder to point users to sidebar
- Cleaned up orphaned state/handlers

* fix(inspector): multiple UI polish fixes [TASK-026]

- Remove border change on hover (just background)
- Play/stop white icons instead of text buttons
- Server info always visible (not collapsible)
- Lighter gray for disconnected labels (#9ca3af)
- Loading state when reconnecting servers
- Server history dropdown in connection form

* fix: add missing useMemo import

* fix: remove duplicate collapsible description in tool detail

* feat(inspector): collapsible primitive cards + delete server button [TASK-026]

- Start/stop button: white background, black icon
- Each tool/resource/prompt is now a collapsible card with animation
- Added bin (trash) icon button to remove servers completely
- Cards expand to show description

* fix: revert primitive cards - tools/resources/prompts are clickable items

Server is already a collapsible card. Primitives should be simple
clickable items that open the detail view, not collapsible cards.

Kept:
- White start/stop button with black icon
- Delete (trash) button per server
- Server as collapsible card (unchanged)

* fix(inspector): server name styling + detail animation

- Server name: bigger font (0.9375rem) and white color
- Removed collapse arrow near server name
- Detail appears with slide-in-from-left + fade animation (0.2s)

* feat(inspector): detail slide animation + server info chips

- Detail slides in from right-to-left on open
- Detail slides out left-to-right on dismiss (animated)
- Server info now displayed as horizontal chips/badges
- Chips show: status, transport, version, capabilities

* fix: improved detail animation - proper exit + reduced jump

- Fixed exit animation not triggering (state machine approach)
- Reduced translation distance (16px → 8px) to minimize jump
- Cleaner enter/exit state transitions

* fix: use CSS transitions for detail animation (simpler approach)

- Enter: fade in + slide from right
- Exit: fade out + slide to left
- Uses requestAnimationFrame for reliable transition trigger

* feat: slide-over detail panel that covers content

- Detail slides in from right, covering the server list
- Full panel with solid background
- Fade + slide animation (250ms)
- Slides out to right on close

* fix: keep server list visible while detail slides over

Server list now stays rendered underneath the sliding detail panel

* fix: remove white border on selected primitives

* fix: align annotation tags to right in detail header

* fix: address P0 review feedback (validation, parsing, cleanup)

* fix: resolve typecheck errors (Zod v4 syntax, unused code cleanup)

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Co-authored-by: Sirius <sirius@clawd.bot>

Author: gabrypavanello