fix(install): public install via keigit.com (Vultr) — no github needed

Что меняется:
- README.md: git clone instruction → https://keigit.com/keisei/KeiSeiKit-1.0.git
  (был приватный github, внешний clone падал 404)
- .gitmodules: kei-registries submodule → keigit.com/keisei/kei-registries.git
  (был приватный github, --recurse-submodules падал)
- web-install.sh: KEISEI_REPO default → https://keigit.com/keisei/...
  (был git@github.com:KeiSeiLab/...)
- install.sh: NO_EXECUTE check ПЕРЕД check_prereqs, чтобы --no-execute
  работал без установленных зависимостей.
- install/lib-args.sh: новый флаг --skip-prereqs (SKIP_PREREQS) — для CI
  и dry-run сценариев.
- marketplace.json + plugin.json: новые манифесты (version=0.38.0 из git tag)
  для Claude Code /plugin marketplace add + install.

На keigit.com (45.77.41.204, публичный) залиты публичные репо
keisei/KeiSeiKit-1.0 + keisei/kei-registries. Anonymous git clone работает.
GitHub mirror (KeiSeiLab/*) остаётся приватным как backup.

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "_blocks/registries"]
 	path = _blocks/registries
-	url = https://github.com/KeiSeiLab/kei-registries.git
+	url = https://keigit.com/keisei/kei-registries.git
 	shallow = true

README.md

@@ -72,7 +72,7 @@ curl -fsSL https://install.keisei.app | bash -s -- --profile=dev --yes  # CI
 /plugin install keisei@keisei-marketplace
 
 # Any MCP-compatible client (Cursor / Continue / Zed / Aider / etc)
-git clone https://github.com/KeiSeiLab/KeiSeiKit-1.0
+git clone https://keigit.com/keisei/KeiSeiKit-1.0.git
 cd KeiSeiKit-1.0
 ./bootstrap.sh                    # interactive profile picker
 # or: ./install.sh --profile=minimal   # direct

install.sh

@@ -157,10 +157,23 @@ if onboarding_should_run; then
 fi
 onboarding_run
 
-# --- prerequisites -------------------------------------------------------
-check_prereqs
+# --- early exit: --no-execute или --skip-prereqs ДО prereqs --------------
+# Это позволяет смотреть план без установленных зависимостей.
+if [ "$NO_EXECUTE" = "1" ]; then
+  CONFIRM_LABEL="$PROFILE"
+  [ "$PROFILE" = "custom" ] && CONFIRM_LABEL="custom ($CUSTOM_PRIMS)"
+  CONFIRM_INPUT="$(printf '%s\n' $PROFILE_PRIMS | grep -v '^$' || true)"
+  printf '%s\n' "$CONFIRM_INPUT" | show_confirm_screen "$CONFIRM_LABEL" || true
+  say "--no-execute: plan resolved, exiting before install"
+  exit 0
+fi
 
-# --- confirm screen + --no-execute ---------------------------------------
+# --- prerequisites -------------------------------------------------------
+if [ "$SKIP_PREREQS" != "1" ]; then
+  check_prereqs
+fi
+
+# --- confirm screen ------------------------------------------------------
 CONFIRM_LABEL="$PROFILE"
 [ "$PROFILE" = "custom" ] && CONFIRM_LABEL="custom ($CUSTOM_PRIMS)"
 CONFIRM_INPUT="$(printf '%s\n' $PROFILE_PRIMS | grep -v '^$' || true)"
@@ -169,11 +182,6 @@ if ! printf '%s\n' "$CONFIRM_INPUT" | show_confirm_screen "$CONFIRM_LABEL"; then
   exit 1
 fi
 
-if [ "$NO_EXECUTE" = "1" ]; then
-  say "--no-execute: plan resolved, exiting before install"
-  exit 0
-fi
-
 # --- execute install phases ----------------------------------------------
 setup_target_dirs
 scaffold_memory_index

install/lib-args.sh

@@ -17,6 +17,7 @@ REMOVE_NAME=""
 LIST_MODE=0
 ASSUME_YES=0
 NO_EXECUTE=0
+SKIP_PREREQS=0
 REBUILD_RUST_LIST=""
 REBUILD_RUST_FLAG=0
 OUTCOME_DRY_RUN=0
@@ -130,6 +131,7 @@ parse_args() {
       --list)            LIST_MODE=1 ;;
       --yes|-y)          ASSUME_YES=1 ;;
       --no-execute)      NO_EXECUTE=1 ;;
+      --skip-prereqs)    SKIP_PREREQS=1 ;;
       --rebuild-rust)    REBUILD_RUST_FLAG=1 ;;
       --rebuild-rust=*)  REBUILD_RUST_FLAG=1; REBUILD_RUST_LIST="${arg#--rebuild-rust=}" ;;
       --dry-run)         OUTCOME_DRY_RUN=1 ;;

marketplace.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "https://json.schemastore.org/claude-code-marketplace.json",
+  "name": "keisei-marketplace",
+  "displayName": "KeiSei",
+  "description": "Constructor Pattern agent kit — agents, skills, hooks, Rust primitives.",
+  "version": "0.38.0",
+  "plugins": [
+    {
+      "name": "keisei",
+      "source": "."
+    }
+  ]
+}

plugin.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://json.schemastore.org/claude-code-plugin.json",
+  "name": "keisei",
+  "displayName": "KeiSei",
+  "description": "Constructor Pattern agent substrate — 59 agents, 67 skills, 39 hooks, 86 blocks. Rust primitives via classic ./install.sh.",
+  "version": "0.38.0",
+  "homepage": "https://keigit.com/keisei/KeiSeiKit-1.0",
+  "repository": "https://keigit.com/keisei/KeiSeiKit-1.0.git",
+  "author": {
+    "name": "Denis Parfionovich",
+    "email": "parfionovich@keilab.io"
+  },
+  "license": "Apache-2.0"
+}

web-install.sh

@@ -14,7 +14,7 @@
 #
 # Env / args:
 #   KEISEI_ROOT     install dir          (default: $HOME/.local/share/keisei)
-#   KEISEI_REPO     git URL              (default: git@github.com:KeiSeiLab/KeiSeiKit-1.0.git)
+#   KEISEI_REPO     git URL              (default: https://keigit.com/keisei/KeiSeiKit-1.0.git)
 #   KEISEI_REF      branch/tag/sha       (default: main)
 #   --profile=NAME  passed through to ./bootstrap.sh
 #   --yes           passed through to ./bootstrap.sh
@@ -24,7 +24,7 @@
 set -euo pipefail
 
 KEISEI_ROOT="${KEISEI_ROOT:-$HOME/.local/share/keisei}"
-KEISEI_REPO="${KEISEI_REPO:-git@github.com:KeiSeiLab/KeiSeiKit-1.0.git}"
+KEISEI_REPO="${KEISEI_REPO:-https://keigit.com/keisei/KeiSeiKit-1.0.git}"
 KEISEI_REF="${KEISEI_REF:-main}"
 
 PASS_THROUGH=()