授权体系落地：30 天试用 + LIC- 在线 / LICOFF- 离线激活 + /pricing 定价页

借鉴 Yaak 授权模型 + 复用自家 OpsXShell 生产级授权协议（opsx-licence 服务端）：
- Rust services/license：30 天试用自首次启动自动开始；LIC- 在线激活/周检/解绑
  （双节点容灾 + 响应 Ed25519 签名校验 + 时钟回拨检测 + 30 天离线容忍）；
  LICOFF- 离线证本地自验（产品码 opsxapi + 设备绑定 + ≤1 年期限）
- 前端 src/license.ts + 活动栏授权徽章（试用 N 天/已授权/未授权）+
  设置→授权页（状态横幅/激活表单/解绑/定价链接带 ?intent= 追踪）
- /pricing 独立定价页（三站同结构）：30 天试用条款、在线/离线激活说明三卡、
  年付↔终身切换、授权 FAQ、独立开发者声明；导航全部接入
- opsxDB 个人 ¥69/年·¥199 终身 / 团队 ¥69 / 私有化 ¥6000（与 API 定位错开）
- GUI 实测：试用 30 天徽章渲染正常；浏览器态授权页正确显示仅桌面端提示

src-tauri/Cargo.lock

@@ -231,6 +231,12 @@ version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac07cdecf99051d9a5238b80f35af32cdeba5b336e55d957b318b50137e18da5"
 
+[[package]]
+name = "base64ct"
+version = "1.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2af50177e190e07a26ab74f8b1efbfe2ef87da2116221318cb1c2e82baf7de06"
+
 [[package]]
 name = "bit-set"
 version = "0.8.0"
@@ -508,6 +514,12 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "const-oid"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
+
 [[package]]
 name = "cookie"
 version = "0.18.2"
@@ -639,6 +651,33 @@ version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "914a755b7c2d4af2bdcff7ce1739e2db9a1b81a9b07123d8015786ae03c0980d"
 
+[[package]]
+name = "curve25519-dalek"
+version = "4.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.2.17",
+ "curve25519-dalek-derive",
+ "digest",
+ "fiat-crypto",
+ "rustc_version",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "curve25519-dalek-derive"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "darling"
 version = "0.24.1"
@@ -721,6 +760,16 @@ dependencies = [
  "thiserror 2.0.20",
 ]
 
+[[package]]
+name = "der"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
+dependencies = [
+ "const-oid",
+ "zeroize",
+]
+
 [[package]]
 name = "deranged"
 version = "0.5.8"
@@ -879,6 +928,30 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0881ea181b1df73ff77ffaaf9c7544ecc11e82fba9b5f27b262a3c73a332555"
 
+[[package]]
+name = "ed25519"
+version = "2.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
+dependencies = [
+ "pkcs8",
+ "signature",
+]
+
+[[package]]
+name = "ed25519-dalek"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70e796c081cee67dc755e1a36a0a172b897fab85fc3f6bc48307991f64e4eca9"
+dependencies = [
+ "curve25519-dalek",
+ "ed25519",
+ "serde",
+ "sha2",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "embed-resource"
 version = "3.0.11"
@@ -988,6 +1061,12 @@ dependencies = [
  "simd-adler32",
 ]
 
+[[package]]
+name = "fiat-crypto"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
+
 [[package]]
 name = "field-offset"
 version = "0.3.6"
@@ -1070,6 +1149,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1f9e3d69d39e4862ffed03ed071a76f9a13ba1d9109d355b0f0aa6b15e393c4"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
@@ -2423,7 +2503,10 @@ dependencies = [
 name = "opsxapi"
 version = "0.1.0"
 dependencies = [
+ "base64 0.22.1",
+ "ed25519-dalek",
  "futures-util",
+ "hex",
  "http",
  "reqwest 0.12.28",
  "serde",
@@ -2583,6 +2666,16 @@ dependencies = [
  "futures-io",
 ]
 
+[[package]]
+name = "pkcs8"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der",
+ "spki",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.34"
@@ -2973,7 +3066,9 @@ checksum = "eddd3ca559203180a307f12d114c268abf583f59b03cb906fd0b3ff8646c1147"
 dependencies = [
  "base64 0.22.1",
  "bytes",
+ "futures-channel",
  "futures-core",
+ "futures-util",
  "http",
  "http-body",
  "http-body-util",
@@ -3430,6 +3525,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "signature"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
+dependencies = [
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.10"
@@ -3512,6 +3616,16 @@ dependencies = [
  "system-deps",
 ]
 
+[[package]]
+name = "spki"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
+dependencies = [
+ "base64ct",
+ "der",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.1"