BIG REFACTOR GPT SOL

feat: Refactor Iced panel adapter and introduce build metadata management

- Updated Cargo.toml files across multiple crates to use workspace versioning.
- Enhanced the `iced-panel-adapter` to include a new `plain_slider` module and updated widget rendering to support theme colors.
- Added new theme color utilities for recessed and elevated surfaces in `iced-panel-adapter`.
- Introduced a new `hcie-build-info` crate to manage build metadata, including a build ID system.
- Created a build script to synchronize build IDs across the workspace.
- Added a Makefile for simplified build commands for the Iced application.
- Implemented regression tests for vector shape creation history in the engine API.
- Added a new script for managing Cargo commands with synchronized build ID increments.
- Updated line count report to reflect recent changes in codebase.
- Created a visual plan document for future improvements in the Iced history and panel systems.

scripts/cargo-with-build-id.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+# Runs one Cargo command with one synchronized HCIE build-number increment.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+ROOT_DIR="$(cd -- "${SCRIPT_DIR}/.." && pwd)"
+LOCK_DIR="${ROOT_DIR}/.build-id.lock"
+COUNTER_FILE="${ROOT_DIR}/build.id"
+
+cleanup() {
+    rm -rf -- "${LOCK_DIR}"
+}
+
+acquire_lock() {
+    while ! mkdir -- "${LOCK_DIR}" 2>/dev/null; do
+        if [[ -f "${LOCK_DIR}/pid" ]]; then
+            local owner
+            owner="$(<"${LOCK_DIR}/pid")"
+            if [[ "${owner}" =~ ^[0-9]+$ ]] && ! kill -0 "${owner}" 2>/dev/null; then
+                rm -rf -- "${LOCK_DIR}"
+                continue
+            fi
+        fi
+        sleep 0.05
+    done
+    printf '%s\n' "$$" > "${LOCK_DIR}/pid"
+    trap cleanup EXIT INT TERM
+}
+
+write_counter() {
+    local target="$1"
+    local value="$2"
+    local temporary="${target}.tmp.$$"
+    printf '%s\n' "${value}" > "${temporary}"
+    mv -f -- "${temporary}" "${target}"
+}
+
+if [[ $# -eq 0 ]]; then
+    echo "usage: scripts/cargo-with-build-id.sh <cargo-subcommand> [arguments...]" >&2
+    exit 2
+fi
+
+acquire_lock
+
+if [[ -f "${COUNTER_FILE}" ]]; then
+    current="$(tr -d '[:space:]' < "${COUNTER_FILE}")"
+else
+    current="0"
+fi
+if [[ ! "${current}" =~ ^[0-9]+$ ]]; then
+    echo "build.id must contain one unsigned integer, found: ${current}" >&2
+    exit 1
+fi
+if (( current >= 9223372036854775807 )); then
+    echo "build.id reached the supported integer limit" >&2
+    exit 1
+fi
+
+next=$((current + 1))
+write_counter "${COUNTER_FILE}" "${next}"
+write_counter "${ROOT_DIR}/hcie-egui-app/build.id" "${next}"
+write_counter "${ROOT_DIR}/hcie-egui-app/crates/hcie-gui-egui/build.id" "${next}"
+
+export HCIE_BUILD_ID_OVERRIDE="${next}"
+echo "HCIE build ${next}: cargo $*"
+
+cd -- "${ROOT_DIR}"
+cargo "$@"