M0: compilable skeleton — Kigi 0.1.0 fork surgery

Hard fork of xai-org/grok-build (Apache-2.0) re-targeted as Kigi, an
unofficial Kimi Code CLI community build.

Rename & identity
- 72 xai-*/xai-grok-* crates -> kigi-* (explicit: xai-grok-pager-bin ->
  kigi-bin [binary `kigi`], xai-grok-pager -> kigi-tui; rest mechanical);
  ptyctl, ptyctl-cli, third_party/ unchanged; proto package
  xai.grok.tools.v1 -> kigi.tools.v1
- Config home ~/.kigi (KIGI_SHARE_DIR override), env prefix GROK_* ->
  KIGI_*, `kigi --version` carries the unofficial-community-build notice
- clap identity, help text, startup banner, prompt templates rebranded
  (templates re-encrypted)

Deletions (PRD removal list #5/#6/#7/#9/#10)
- voice input (xai-grok-voice) and all TUI wiring
- telemetry: Mixpanel client, external OTel stream, Sentry, OTLP layers,
  trace/GCS/S3 upload queues (kigi-file-utils halved), workspace upload
  module & dc_log, heap-profile uploader, auth-diagnostics uploader,
  session-analytics halves of feedback; local zero-egress observability
  preserved in new kigi-log crate (unified log, --debug firehose,
  subsystem file logs, opt-in instrumentation)
- announcements (crate, remote-settings fields, TUI surfaces)
- plugin marketplace (crate, sources/browse/CTA/extensions-modal tab);
  direct plugin install/uninstall/update via kigi-agent git_install kept
- relay/gateway/assets endpoints and features (agent relay, headless
  relay transport, gateway bridge, LeaderEnvUrls); leader IPC socket now
  ~/.kigi/leader.sock + KIGI_LEADER_SOCKET, no ws-url derivation
- functional types rehomed instead of deleted: PermissionMode ->
  kigi-config-types, McpInitStrategy -> kigi-mcp, PrCreationSource ->
  session signals, TerminalDiagnostics -> kigi-pager-render, agent_id ->
  shell util

Endpoints
- kigi-env rewritten: single production KigiEndpoints {coding_api_base_url
  https://api.kimi.com/coding/v1 (KIGI_CODE_BASE_URL), oauth_host
  https://auth.kimi.com (KIGI_OAUTH_HOST), update_base_url (GitHub
  Releases API), upgrade_page_url}; GrokBuildEnvironment enum deleted

Toolchain & workspace hygiene
- Rust 1.97.0 pinned; edition 2024; full cargo update; git2 hoisted to
  workspace at 0.21 (Option->Result API migration), quick-xml 0.41
- Root Cargo.toml hand-maintained (PRD §8.1): version 0.1.0 inherited by
  all members, members sorted, unused deps pruned
- cargo-deny advisories gate (deny.toml with documented transitive
  exceptions); CI workflow (check/clippy/fmt/deny/test, macOS+Linux)
- cross-crate test seams re-gated behind `test-support` cargo feature;
  insta snapshot baselines renamed to the kigi_tui prefix
- clippy --workspace --all-targets: zero warnings; fmt clean

Fixes surfaced by the port
- updater probe/installer divergence (bin/kigi vs bin/grok symlink set)
- idle model-metadata refresh dead under KIGI_CODE_BASE_URL override
  (new is_effective_coding_endpoint_url, loopback+override aware)
- macOS symlinked-TMPDIR fixture canonicalization (foreign_sessions,
  fast-worktree); RSS measurement tests serialized via serial_test

Docs & legal (Apache §4)
- NOTICE added (upstream attribution + change statement); THIRD-PARTY
  notices sustained; kigi-tools ported-code notices extended; README,
  CONTRIBUTING, SECURITY, AGENTS.md rewritten

Out of scope for M0 (tracked): Kimi auth/inference (M1), search/fetch,
command parity, config import (M2), Computer Hub excision & final
brand-token sweep (M2), distribution & self-update rewrite (M3).

crates/codegen/kigi-tui/tests/pty_e2e_shell_tools.rs

@@ -0,0 +1,47 @@
+//! Shell mode, edit/tool rendering, folder trust, skills, and MCP PTY coverage.
+//!
+//! All cases are ignored for ordinary Cargo runs; Bazel opts in and caps this
+//! process-heavy family at four concurrent libtest workers.
+
+// Shared support intentionally serves all PTY family crates.
+#[allow(dead_code, unused_imports)]
+#[path = "pty_e2e/common.rs"]
+mod common;
+#[allow(dead_code, unused_imports)]
+#[path = "pty_e2e/scroll.rs"]
+mod scroll;
+
+#[path = "pty_e2e/bash_mode_file_completion_shell_like.rs"]
+mod bash_mode_file_completion_shell_like;
+#[path = "pty_e2e/bash_mode_strips_redundant_session_cd_from_chrome.rs"]
+mod bash_mode_strips_redundant_session_cd_from_chrome;
+#[path = "pty_e2e/bash_mode_tab_completion_dropdown.rs"]
+mod bash_mode_tab_completion_dropdown;
+#[path = "pty_e2e/edit_collapsed_oneliner_pty.rs"]
+mod edit_collapsed_oneliner_pty;
+#[path = "pty_e2e/edit_hl_inplace_refresh_pty.rs"]
+mod edit_hl_inplace_refresh_pty;
+#[path = "pty_e2e/edit_merge_parallel_pty.rs"]
+mod edit_merge_parallel_pty;
+#[path = "pty_e2e/edit_merge_sequential_pty.rs"]
+mod edit_merge_sequential_pty;
+#[path = "pty_e2e/file_path_with_space_emits_full_osc8_hyperlink.rs"]
+mod file_path_with_space_emits_full_osc8_hyperlink;
+#[path = "pty_e2e/folder_trust_cwd_is_home_git_repo_no_prompt.rs"]
+mod folder_trust_cwd_is_home_git_repo_no_prompt;
+#[path = "pty_e2e/folder_trust_decline_quits_without_grant.rs"]
+mod folder_trust_decline_quits_without_grant;
+#[path = "pty_e2e/folder_trust_feature_off_shows_no_question.rs"]
+mod folder_trust_feature_off_shows_no_question;
+#[path = "pty_e2e/folder_trust_home_git_repo_subdir_keys_on_subdir.rs"]
+mod folder_trust_home_git_repo_subdir_keys_on_subdir;
+#[path = "pty_e2e/folder_trust_question_renders_and_accept_persists_grant.rs"]
+mod folder_trust_question_renders_and_accept_persists_grant;
+#[path = "pty_e2e/managed_policy_gate_refusal_reaches_real_terminal.rs"]
+mod managed_policy_gate_refusal_reaches_real_terminal;
+#[path = "pty_e2e/mcp_menu_loads_servers_in_non_project_dir.rs"]
+mod mcp_menu_loads_servers_in_non_project_dir;
+#[path = "pty_e2e/mcp_menu_loads_servers_in_project_dir.rs"]
+mod mcp_menu_loads_servers_in_project_dir;
+#[path = "pty_e2e/mid_text_skill_token_echo_styled_pty.rs"]
+mod mid_text_skill_token_echo_styled_pty;