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/src/lib.rs

@@ -0,0 +1,73 @@
+//! kigi-tui — Grok Build TUI.
+//!
+//! A clean-room implementation built on the v3 pager rendering engine.
+
+pub mod acp;
+pub mod actions;
+pub mod app;
+pub mod client_identity;
+pub mod completions_cmd;
+mod config_toml_edit;
+pub mod diagnostics;
+pub mod diff;
+pub mod docs;
+pub mod export_cmd;
+pub mod git_info;
+pub mod headless;
+pub mod hyperlink_route;
+pub mod inline_media_ffmpeg;
+pub mod input;
+pub mod input_log;
+pub mod mcp_cmd;
+pub mod memory_cmd;
+pub mod memory_release;
+pub mod memory_trace;
+// ── Minimal (scrollback-native) mode seam ────────────────────────────────────
+// The *only* minimal-specific surface in this (the "full pager") crate. Both
+// modules are grouped under `src/minimal/` so a full-pager contributor sees one
+// folder to ignore, not files scattered through the module list. All the actual
+// minimal rendering lives in the sibling `kigi-pager-minimal` crate; these
+// are just the two narrow seams it connects through:
+//   - `minimal_hook` — pager → minimal dispatch (fn-pointer IoC seam).
+//   - `minimal_api`  — minimal → pager read surface (facade over `pub(crate)`s).
+// Module names are kept flat (via `#[path]`) so existing references and
+// every `crate::minimal_{api,hook}` call site stay valid.
+#[path = "minimal/api.rs"]
+pub mod minimal_api;
+#[path = "minimal/hook.rs"]
+pub mod minimal_hook;
+pub mod models;
+pub mod notifications;
+#[allow(unused_imports, unused_macros)]
+pub mod obf;
+pub mod plugin_cmd;
+pub mod project_picker;
+pub mod pty_wrap;
+pub mod scrollback;
+pub mod search;
+pub mod sessions_cmd;
+pub mod settings;
+pub mod share_cmd;
+pub mod slash;
+pub mod startup;
+pub mod tips;
+pub mod wrap_clipboard_image;
+pub mod wrap_cmd;
+
+pub mod tool_usage;
+
+// Presentation-primitives layer extracted into the sibling crate
+// `kigi-pager-render`. Re-exported at the crate root so existing
+// `crate::<module>::...` references throughout the pager keep resolving.
+pub use kigi_pager_render::{
+    appearance, clipboard, gboom, glyphs, host, link_opener, modal_window_state, prompt_images,
+    render, syntax, terminal, theme, util,
+};
+pub mod trace_cmd;
+pub mod tracing;
+pub mod unified_log;
+pub mod views;
+pub mod worktree_cmd;
+
+#[cfg(test)]
+pub mod test_util;