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-pager-render/Cargo.toml

@@ -0,0 +1,115 @@
+[package]
+name = "kigi-pager-render"
+version.workspace = true
+edition.workspace = true
+license = "Apache-2.0"
+
+[dependencies]
+# TTY safety
+dunce = { workspace = true }
+kigi-tty-utils = { workspace = true }
+
+# Rendering
+ratatui = { workspace = true, features = [
+    "crossterm",
+    "unstable-widget-ref",
+    "unstable-backend-writer",
+] }
+ratatui-core = { workspace = true }
+crossterm = { workspace = true, features = ["event-stream", "bracketed-paste"] }
+textwrap = { workspace = true }
+regex = { workspace = true }
+unicode-width = { workspace = true }
+unicode-segmentation = { workspace = true }
+linkify = { workspace = true }
+tui-scrollbar = { workspace = true }
+
+# Markdown / syntax highlighting
+kigi-markdown = { workspace = true }
+syntect = { workspace = true }
+anstyle = { workspace = true }
+supports-color = { workspace = true }
+
+# Data
+serde = { workspace = true, features = ["derive"] }
+toml = { workspace = true }
+toml_edit = { workspace = true, features = ["serde"] }
+documented = { workspace = true }
+
+# VTE terminal emulation for native rendering of command output (SGR, cursor, \r)
+vte = { workspace = true }
+
+# System appearance detection (dark/light mode)
+dark-light = "2"
+
+# Utilities
+strum = { workspace = true }
+anyhow = { workspace = true }
+tokio = { workspace = true, features = [
+    "sync",
+    "rt",
+    "macros",
+    "rt-multi-thread",
+    "signal",
+    "io-util",
+    "io-std",
+] }
+tracing = { workspace = true }
+
+# Prompt text input
+kigi-ratatui-textarea = { workspace = true }
+kigi-ratatui-inline = { workspace = true }
+
+# ACP
+agent-client-protocol = { workspace = true }
+kigi-config = { workspace = true }
+kigi-shared = { workspace = true }
+kigi-workspace = { workspace = true }
+kigi-log = { workspace = true }
+kigi-tools = { workspace = true }
+kigi-paths = { path = "../kigi-paths" }
+
+# Base64 encoding for image data
+base64 = { workspace = true }
+
+# Image decoding/resizing for clipboard image validation before send
+image = { workspace = true, features = ["png", "jpeg", "tiff", "gif", "webp"] }
+
+# ID generation
+uuid = { workspace = true, features = ["v4"] }
+
+# Path computation
+dirs = { workspace = true }
+shellexpand = "3.1"
+
+# Parsing
+url = { workspace = true }
+
+# Hot-reload config (dev mode)
+notify = { workspace = true, optional = true }
+
+# libc: poll/read for non-blocking terminal reads in theme/osc11.rs.
+[target.'cfg(unix)'.dependencies]
+libc = { workspace = true }
+
+# EnumDisplaySettingsW for primary-display refresh probe (host/display_refresh).
+[target.'cfg(windows)'.dependencies]
+windows-sys = { version = "0.59", features = ["Win32_Graphics_Gdi"] }
+
+[dev-dependencies]
+pretty_assertions = { workspace = true }
+serial_test = { workspace = true }
+tempfile = { workspace = true }
+
+[features]
+# CI builds a single shared rlib variant per crate, so the pager's CI
+# test target links the same render lib as production. Enabling the test-only
+# helpers in the CI default set keeps them present for the pager test while
+# leaving cargo's `default` (and thus cargo production builds) without them.
+# The helpers are inert unless their mock setters are called.
+default-bazel = []
+# Exposes the `#[cfg(test)]` seams (clipboard probe hooks, theme cache/mock
+# helpers, graphics-protocol override, …) to dependent crates' test builds.
+# Enable from a dependent's [dev-dependencies] entry only — never in
+# production. The seams are inert unless their setters are called.
+test-support = []