chore(i18n): sync Turkish with V2 migration key changes

[fitzgpt]

Summary

Follow-up to #662 (Turkish localization). The native V2 migration (#647) and the follow-up commits (#672, #682) changed the i18n key set without updating tr/, so the Turkish UI currently renders 76 English strings and carries 35 stale keys.

This PR brings tr/ back to 1:1 key parity with en/ (1721 = 1721 leaves, verified programmatically):

Added (76 keys) across 5 files:

• instance.ts — background shell statuses (running/exited/timeout/killed), PID/exit-code labels, stop-and-remove + remove confirmation dialog
• messaging.ts — search failure/retry, reasoning step counters, remove-tools-and-reasoning flow (replaces the old delete-message/bulk-delete keys), prompt background action, prompt queue (steer/queue delivery, actions, errors)
• toolCall.ts — permissionApproval.kind.form + new formRequest.* block (submit/cancel/errors/validation)
• settings.ts — V2 update notice, provider command-auth method + waiting dialog, provider credit balance, follow-up behavior (steer vs queue)
• commands.ts — stop-workspace and remove-session-technical-parts commands (labels/descriptions/keywords, keywords translated per existing convention)

Removed (35 keys) that no longer exist in en/: old delete-message/bulk-delete block, messageBlock.tool.deletePart.*, tauriNativeEventTransport, old background-process status/output/notify/stop/terminate keys.

Verification

• Leaf-level parity check via direct module import: EN 1721 = TR 1721, missing 0, extra 0 (script in PR discussion)
• {count}/{pid}/{toolCount} style placeholders preserved 1:1
• Terminology consistent with the shipped glossary: "ek" (attachment), "Prompt" kept literal, "workspace" kept literal, keywords translated like existing entries

[github-actions]

PR builds are available as GitHub Actions artifacts:

https://github.com/NeuralNomadsAI/CodeNomad/actions/runs/34338285232

Artifacts expire in 7 days.
Artifacts:

• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-tauri-macos
• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-tauri-windows
• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-electron-macos
• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-electron-linux
• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-tauri-linux
• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-tauri-macos-arm64
• pr-685-0934305bd80d44c41d77338a7c2a5385c22c51c7-electron-windows

Reposting with a corrected explanation of the conditional OpenCode upgrade flow.

[pascalandr]

Gatekeeper: key parity is correct, but the Turkish catalog is still not fully synced with V2 value changes. Comparing the #662 merge with this head found 11 keys whose English text changed while Turkish stayed byte-for-byte on the old meaning:

• instance.ts:128,217,226,233: background-shell tooltip/empty/output text and opencodeBinarySelector.customPath.placeholder
• messaging.ts:129: messagePart.actions.delete
• settings.ts:13,235-238,289: active plugins, OpenCode version status text, and the mixed authentication method

The important mismatches are concrete: the shell tooltip still describes the old agent-process model; the mixed method omits command auth; and the binary placeholder drops {name}, so it says opencode while the UI passes opencode2. The four OpenCode card strings also retain their old update/check wording instead of the current English version/installed-version wording. This does not mean upgrades were removed: the update button correctly remains available when canUpgrade is true.

Please update all 11 values and rerun the global placeholder check. The 76 added keys, 35 removals, key count, build/typecheck, and CI otherwise check out.

[fitzgpt]

Updated all 11 values in fc8a155:

• instance.ts:128 tooltip now describes native OpenCode background shells for the active workspace or worktree
• instance.ts:217 empty state and instance.ts:226 output action now use the shell/output wording ("Arka plan kabuğu yok." / "Çıktıyı görüntüle")
• instance.ts:233 placeholder restores {name}: "{name} binary yolunu girin…"
• messaging.ts:129 messagePart.actions.delete is now "Sil"
• settings.ts:13 plugins empty state is now "Etkin plugin yok."
• settings.ts:235-238 OpenCode card reworded to version/installed-version semantics ("OpenCode sürümü", "Kurulu sürüm okunuyor...", etc.)
• settings.ts:289 mixed method now "API anahtarı, OAuth veya komut"

Global check: EN/TR 1721/1721 keys, 0 missing, 0 extra, 0 placeholder mismatches. npm run typecheck passes for both workspaces.

[github-actions]

PR builds are available as GitHub Actions artifacts:

https://github.com/NeuralNomadsAI/CodeNomad/actions/runs/34391736894

Artifacts expire in 7 days.
Artifacts:

• pr-685-f334d04fd7014083421797360131574be18dfdc9-tauri-macos
• pr-685-f334d04fd7014083421797360131574be18dfdc9-tauri-windows
• pr-685-f334d04fd7014083421797360131574be18dfdc9-electron-macos
• pr-685-f334d04fd7014083421797360131574be18dfdc9-tauri-linux
• pr-685-f334d04fd7014083421797360131574be18dfdc9-electron-linux
• pr-685-f334d04fd7014083421797360131574be18dfdc9-tauri-macos-arm64
• pr-685-f334d04fd7014083421797360131574be18dfdc9-electron-windows

[pascalandr]

Gatekeeper: fixes verified on f334d04f. All 11 stale values now match the V2 semantics, including the restored {name} placeholder. EN/TR parity is 1,721/1,721 with no missing, extra, empty, or placeholder-mismatched entries. UI typecheck/build and git diff --check pass locally, and the full CI/build matrix is green.

Thanks @fitzgpt !