fix(orchestration): focus a newly opened Orcastrator window

[zaridan]

Problem

#29 added a suppressActivation flag so a director wouldn't yank the user off their active tab when it spawns a worker programmatically. That flag was also applied to launchOrchestratorForProject, which is reached from exactly one place: the user clicking "+" in the ORCASTRATORS sidebar section (OrchestratorLaunchModal.tsx:128). That is a deliberate, manual action and the new Orcastrator window SHOULD be focused — exactly like the "+" for a regular worktree. The regression: after #29, opening a new Orcastrator silently left the user on their current worktree.

Change (user-facing, one line)

Opening a new Orcastrator now activates (focuses) it.

• orchestrator-launch.ts — stop passing suppressActivation: true to activateAndRevealWorktree.
• director-worktree-shell.ts — drop the trailing { suppressActivation: true } on the store createWorktree call so the host-side (SSH/remote) activate gate (worktrees.ts, activate: options?.suppressActivation !== true) also focuses the new director. launchOrchestratorForProject is createDirectorWorktreeShell's only caller (confirmed by grep after the recipe-director layer was removed in 71041c0db), so no per-caller option threading is needed.

Untouched: worker-spawn focus suppression

A director spawning a worker must still not steal focus. This PR leaves intact:

• The CLI worker-spawn path (fix(orchestration): don't steal active-tab focus when a director spawns a worker via the CLI #35) in src/cli/handlers/worktree.ts / src/cli/selectors.ts.
• Any renderer worker-create path that suppresses activation.
• The generic suppressActivation flag itself (still used for worker spawns) and its worktree-activation-suppress.test.ts coverage.

Tests

• orchestrator-launch.test.ts — flipped to assert the launch now activates (suppressActivation falsy, sidebarRevealBehavior still 'auto').
• director-worktree-shell.test.ts — asserts no trailing suppressActivation option is passed to the host create.
• worktree-activation-suppress.test.ts — unchanged, still green (proves worker-spawn suppression is unaffected).

Verified: touched vitest files pass (6/6), oxlint clean, tsgo web typecheck passes.

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