Convert remaining `automated: false` TCs to assisted mode

[couimet]

132 TCs remain automated: false after the assisted mode infrastructure landed in #503. The infrastructure is in place — waitForHuman, log-based QuickPick assertions (assertQuickPickItemsLogged), tristate YAML, test:release:grep filtering. Now we need to convert the remaining manual TCs.

Strategy: Hybrid (Option 3)

3-4 high-value feature-area PRs establish patterns, then a sweep PR handles the long tail (~5 PRs total).

Phase 1 — Pattern-establishing PRs

• Terminal Picker + File Picker (22 TCs) — Category A: QuickPick content validation via assertQuickPickItemsLogged
• R-D Bind to Destination (12 TCs) — Category A: multi-step assisted pattern (bind + verify toast)
• Context Menus (all 4 types: 23 TCs) — Category B: command-trigger + toast/status bar verification
• R-G Go to Link (9 TCs) — Category B: keybinding-trigger + navigation verification

Phase 2 — Sweep PR

• Everything else (~66 TCs) — uses patterns from Phase 1 PRs: settings-dependent TCs (Clipboard Preservation, Dirty Buffer Warning, Two-Verb Vocabulary), multi-step scenarios (R-V, Text Editor Destination), remaining small feature areas

Phase 3 — Triage truly manual TCs

• Per-TC triage — identify Category E TCs that genuinely cannot convert (visual-only checks, platform-specific behavior, external tool interaction). These stay automated: false permanently.

TC breakdown by feature area

 13  Terminal Picker
 12  R-D Bind to Destination
 11  Context Menus — Editor Content
 10  Send File Path
  9  R-G Go to Link
  9  File Picker
  7  Changed — Two-Verb Vocabulary
  6  R-M Status Bar Menu (remaining)
  6  Clipboard Preservation
  5  R-V Send Terminal Selection
  5  Dirty Buffer Warning
  5  Context Menus — Explorer
  4  Context Menus — Editor Tab
  4  Changed — Picker When Unbound
  4  Changed — Editor Binding Validation
  3  Core Send Commands — R-L
  3  Context Menus — Terminal
  3  Changed — Text Editor No Split Required
  2  Filename-Only Navigation Fallback
  2  Core Send Commands — R-C
  5  Text Editor Destination (various)
  1  R-U Unbind
  1  Link Navigation — URL Exclusion
  1  Clickable Links — Document Link Tooltip

Infrastructure enhancements that may be needed

• Context menu trigger helper — simulates right-click context menu (or command equivalent) for Category B tests
• Terminal text assertion — log-based assertion for sendText calls to verify text was sent to terminal
• Multi-step waitForHuman — some TCs need 2-3 sequential human actions with intermediate assertions (already supported by current API)