v0.47.0: dialogs, session menu, /skills, mobile fixes, mobile QA suite

* fix: custom provider with slash model name no longer rerouted to OpenRouter (#255)

When base_url is configured in config.yaml, resolve_model_provider() now
trusts the configured provider/base_url entirely and skips the slash-based
OpenRouter heuristic. Fixes google/gemma-4-26b-a4b with provider:custom
being silently routed to OpenRouter, resulting in 401 errors.

Fixes #230

* test: mobile layout regression suite — 14 tests for every QA run (#254)

Adds tests/test_mobile_layout.py with 14 static regression tests that run
on every QA pass to catch mobile layout breakage before it reaches prod.
Covers: breakpoints at 900px/640px, right panel slide-over CSS, mobile
overlay, bottom nav, files button, profile dropdown z-index, chip overflow,
workspace close, 100dvh, 44px touch targets, 16px font-size on textarea.

* feat: /skills slash command lists and filters available Hermes skills (#257)

Adds /skills [query] command to commands.js. Fetches from /api/skills,
groups by category (alphabetically sorted), displays as a formatted
assistant message. Optional query filters by name, description, or category.
i18n keys added for en, de, zh, zh-Hant. 1 regression test added.

Fixes #248

* feat: shared app dialogs replace native confirm()/prompt() calls (#251)

Adds showConfirmDialog() and showPromptDialog() helpers to ui.js, backed
by a themed #appDialogOverlay. Replaces all 11 native browser confirm/prompt
call sites across panels.js, sessions.js, ui.js, workspace.js.

Supports: danger mode, keyboard focus trap (Tab/Escape/Enter), focus restore,
ARIA roles, mobile-responsive stacked buttons at 640px. i18n for en/de/zh/zh-Hant.
5 new tests in test_sprint33.py verify markup, CSS, helpers, and absence of
native dialog calls.

Extracted from PR #242.

* fix: Android Chrome mobile — workspace panel close + profile dropdown (#256)

Fix #247: toggleMobileFiles() now shows/hides the mobile overlay when
toggling the right workspace panel. New closeMobileFiles() helper closes
the panel with correct overlay state tracking. Overlay onclick calls both
closeMobileSidebar() and closeMobileFiles(). Mobile-only close button (x)
added to workspace panel header.

Fix #246: profile dropdown uses position:fixed;top:56px;right:8px at
max-width:900px, escaping the overflow-x:auto stacking context that was
clipping it on Android Chrome.

Fix applied during review: closeMobileSidebar() now checks if the right
panel is still open before hiding the overlay, preventing the overlay from
disappearing when only the sidebar is closed.

Fixes #247 Fixes #246

* feat: session ⋯ action dropdown replaces per-row buttons (#252)

Replaces the 5 per-row hover action buttons (pin/move/archive/duplicate/trash)
with a single ⋯ trigger that opens a positioned dropdown menu. Menu has full
keyboard (Escape), click-outside, scroll, and resize-reposition handling.
Position:fixed prevents sidebar clipping.

5 actions: Pin/Unpin, Move to project, Archive/Unarchive, Duplicate, Delete
(danger style). Each with icon and descriptive subtitle.

Updated test_sprint16.py: test_sessions_js_uses_action_menu_not_per_row_buttons
asserts the new trigger and menu functions exist, old per-row classes are gone.

Extracted from PR #242.

* docs: v0.47.0 release notes, bump version, update test counts (645)

---------

Co-authored-by: Nathan Esquenazi <nesquena@gmail.com>

tests/test_sprint16.py

@@ -700,10 +700,20 @@ def test_style_css_active_session_uses_gold(cleanup_test_sessions):
         "Active session gold color (#e8a030) not found in style.css"
 
 
-def test_sessions_js_active_skips_project_border(cleanup_test_sessions):
-    """sessions.js must not override active session border-left with project color."""
+def test_sessions_js_uses_action_menu_not_per_row_buttons(cleanup_test_sessions):
+    """sessions.js must use the single ⋯ action menu instead of per-row buttons.
+
+    The per-row button overlay was replaced with a single ⋯ trigger that opens a
+    positioned dropdown (session-action-menu). This removes the borderLeftColor
+    project colour override that the old code applied, which was the original
+    concern this test guarded. The new design uses a dot indicator for project
+    membership instead.
+    """
     src = REPO_ROOT / "static" / "sessions.js"
     code = src.read_text()
-    # The fix: only set borderLeftColor if NOT the active session
-    assert "isActive" in code, "isActive check not found in sessions.js"
-    assert "borderLeftColor" in code, "borderLeftColor not found in sessions.js"
+    assert "session-actions-trigger" in code, "session-actions-trigger not found in sessions.js"
+    assert "_openSessionActionMenu" in code, "_openSessionActionMenu not found in sessions.js"
+    assert "closeSessionActionMenu" in code, "closeSessionActionMenu not found in sessions.js"
+    # The old per-row buttons must not be present (they were replaced by the menu)
+    assert "act-pin" not in code, "old act-pin per-row button still in sessions.js"
+    assert "act-archive" not in code, "old act-archive per-row button still in sessions.js"