feat(meowpanel): 通知中心+文件管理后端补全 (agent-182) — /api/notifications(读TF归档,环形200条)+单删+dismiss_all(保留媒体/进度活动通知); 文件域修4bug(normalize_path丢前导/致白名单必失败、upload multipart 文件名截断恒NULL、rename拼错路径恒ENOTDIR、read>1MB改truncated) + 上传8MB上限+文件名净化+双重白名单防逃逸

meowpanel 8108852f→58a7b186; mipsel/host -Wall -Wextra 0 warning; 宿主 curl 自测全过
需launcher配合项(已记录): MSG_NOTIFY_QUERY 查询帧 + dismiss 广播 IPC

patch_v2/meowpanel/meowpanel.c

@@ -56,10 +56,21 @@
 #define DEFAULT_PORT       8080
 #define SETTINGS_FILE      "/usr/data/meow/settings.conf"
 #define SETTINGS_HDR       "# meow-settings 1"
-#define TF_ROOT            "/usr/data/mnt/sd_0"
-#define TF_CARD_DIR        "/usr/data/mnt/sd_0/MeowOS"
-#define MEOWAPPS_DIR       "/usr/data/mnt/sd_0/MeowAPPs"
-#define LOGS_DIR           "/usr/data/mnt/sd_0/MeowOS/logs"
+/* TF 卡路径（运行期可覆盖，宿主测试用 env MEOW_TF_ROOT；默认设备卡挂载点）。
+ * TF_ROOT 保持为「数组宏」而非指针——让 -Wformat-truncation 能按 1024 尺寸分析拼接，避免误报。 */
+static char g_tf_root_buf[1024] = "/usr/data/mnt/sd_0";
+static char g_tf_card_buf[2048];
+static char g_apps_dir_buf[2048];
+static char g_logs_dir_buf[2048];
+static char g_notif_log_buf[2048];
+static const char *g_tf_card  = NULL;   /* 派生：<root>/MeowOS */
+static const char *g_apps_dir = NULL;   /* 派生：<root>/MeowAPPs */
+static const char *g_logs_dir = NULL;   /* 派生：<card>/logs */
+static const char *g_notif_log = NULL;  /* 通知转储日志：<card>/notifications/notifications.log */
+#define TF_ROOT       g_tf_root_buf
+#define TF_CARD_DIR   g_tf_card
+#define MEOWAPPS_DIR  g_apps_dir
+#define LOGS_DIR      g_logs_dir
 #define PERF_SOCK          "/usr/data/meow_perf.sock"
 #define POWER_SOCK         "/usr/data/meow_power.sock"
 #define NYAI_PATH          "/usr/bin/nyai"                                    /* 固件内置（权威） */
@@ -70,10 +81,13 @@
 
 #define IPC_TIMEOUT_MS     2000
 #define MAX_HTTP_HEADER    (64 * 1024)
-#define MAX_HTTP_BODY      (16 * 1024 * 1024)   /* 上传上限 */
+#define MAX_HTTP_BODY      (16 * 1024 * 1024)   /* 通用 body 上限（JSON/小件） */
+#define MAX_UPLOAD_BODY    (8 * 1024 * 1024)    /* multipart 上传上限（14MB 内存约束：不整读超 8MB） */
 #define MAX_JSON_IN        65536                 /* JSON body 解析上限 */
 #define MAX_STATIC_FREEBUF (2 * 1024 * 1024)
 #define LOG_MAX_LINES      1000
+#define NOTIF_PREVIEW_MAX  200                   /* 通知列表返回上限（每条约 0.2KB，总 <50KB） */
+#define TEXT_PREVIEW_MAX   (1024 * 1024)          /* 文本预览上限（超出截断，truncated=true；14MB 约束下 1MB 缓冲安全） */
 
 /* 白名单子目录（TF 卡根下） */
 static const char *g_allowed_dirs[] = { "MeowOS", "Music", "MeowData", "MeowAPPs", "book" };
@@ -89,6 +103,29 @@ static const char *g_sensitive_names[] = {
 static const char *g_sock_perf = PERF_SOCK;
 static const char *g_sock_power = POWER_SOCK;
 
+/* 初始化 TF 卡派生路径（main 开头调用）。env MEOW_TF_ROOT 可覆盖卡根（宿主测试用）；
+ * env MEOW_NOTIF_LOG 可覆盖通知转储日志路径（宿主测试用）。默认设备卡路径。 */
+static void init_tf_paths(void)
+{
+    const char *env = getenv("MEOW_TF_ROOT");
+    if (env && env[0]) {
+        snprintf(g_tf_root_buf, sizeof g_tf_root_buf, "%s", env);
+        /* 去掉末尾 `/`（规范化处统一按无尾斜杠处理） */
+        size_t l = strlen(g_tf_root_buf);
+        while (l > 1 && g_tf_root_buf[l - 1] == '/') g_tf_root_buf[--l] = 0;
+    }
+    snprintf(g_tf_card_buf, sizeof g_tf_card_buf, "%s/MeowOS", TF_ROOT);
+    snprintf(g_apps_dir_buf, sizeof g_apps_dir_buf, "%s/MeowAPPs", TF_ROOT);
+    snprintf(g_logs_dir_buf, sizeof g_logs_dir_buf, "%s/MeowOS/logs", TF_ROOT);
+    snprintf(g_notif_log_buf, sizeof g_notif_log_buf, "%s/MeowOS/notifications/notifications.log", TF_ROOT);
+    env = getenv("MEOW_NOTIF_LOG");
+    if (env && env[0]) snprintf(g_notif_log_buf, sizeof g_notif_log_buf, "%s", env);
+    g_tf_card  = g_tf_card_buf;
+    g_apps_dir = g_apps_dir_buf;
+    g_logs_dir = g_logs_dir_buf;
+    g_notif_log = g_notif_log_buf;
+}
+
 /* ---------------- 有界动态字符串（sbuf） ---------------- */
 typedef struct { char *b; size_t n; size_t cap; } sbuf_t;
 
@@ -146,6 +183,16 @@ static void sA_str(sbuf_t *s, const char *v)
     sA(s, "\"");
 }
 
+/* 追加一段原始字节到 sbuf（长度明确，绕过 %s 的固定缓冲限制；用于大 JSON 数组复用）。 */
+static void sA_append(sbuf_t *s, const char *b, size_t n)
+{
+    if (!b || n == 0) return;
+    if (sb_reserve(s, n) < 0) return;
+    memcpy(s->b + s->n, b, n);
+    s->n += n;
+    s->b[s->n] = 0;
+}
+
 static void sbuf_free(sbuf_t *s) { free(s->b); s->b = NULL; s->n = s->cap = 0; }
 
 /* ---------------- 响应函数前向声明（文件列表等先于定义处使用） ---------------- */
@@ -156,6 +203,7 @@ static int send_ok(int sock, const char *data);
 static int send_err(int sock, int status, const char *code, const char *msg);
 static int send_json(int sock, int status, const char *data);
 static int send_file(int sock, int status, const char *ctype, const char *abspath, const char *filename);
+static void panel_log(const char *fmt, ...);
 
 /* ---------------- CSV（enum 名/标签）非改写取值；定义在设置列表区，先声明供 settings_coerce 用 ---------------- */
 static const char *csv_at(const char *s, int idx, char *buf, int buflen);
@@ -795,6 +843,7 @@ done:
 /* ---------------- 路径安全 ---------------- */
 static int tf_present(void)
 {
+    if (getenv("MEOW_TF_ROOT")) return 1;   /* 宿主测试显式指定卡根（env 覆盖），信任其存在 */
     FILE *f = fopen("/proc/mounts", "r");
     if (!f) return 0;
     char line[512];
@@ -836,7 +885,8 @@ static int is_sensitive_name(const char *base)
 static int normalize_path(const char *in, char *buf, size_t buflen)
 {
     size_t rl = strlen(TF_ROOT);
-    char joined[1024];
+    if (strlen(in) > 900) return -1;                 /* 拒绝超长路径（防御；真实路径远小于此） */
+    char joined[2048];
     if (in[0] == '/') {
         if (strncmp(in, TF_ROOT, rl) == 0 && (in[rl] == 0 || in[rl] == '/')) {
             snprintf(joined, sizeof joined, "%s", in);
@@ -849,10 +899,13 @@ static int normalize_path(const char *in, char *buf, size_t buflen)
     } else {
         snprintf(joined, sizeof joined, "%s/%s", TF_ROOT, in);
     }
-    /* 逐分量规范化：/a/b/../c → /a/c；拒绝逃逸出 root */
-    char out[1024];
+    /* 逐分量规范化成**绝对**路径：/a/b/../c → /a/c；拒绝逃逸出 root。
+     * 用绝对 out（以 '/' 开头）构建：首段即带前导 '/', 保证 path_in_whitelist 的绝对前缀比对成立。 */
+    char out[2048];
     size_t n = 0;
-    out[0] = 0;
+    out[0] = '/';
+    out[1] = 0;
+    n = 1;
     char *p = joined;
     while (*p) {
         while (*p == '/') p++;
@@ -863,24 +916,27 @@ static int normalize_path(const char *in, char *buf, size_t buflen)
         seg[k] = 0;
         if (!strcmp(seg, ".") || !strcmp(seg, "")) continue;
         if (!strcmp(seg, "..")) {
-            /* 弹出一级；若已在 root 再 .. 则逃逸 */
-            if (n == 0) return -1;
-            while (n > 0 && out[n - 1] != '/') n--;
-            if (n > 0) n--;              /* 去掉结尾 / */
+            /* 弹出一级；已在根(n==1)再 .. → 逃逸出 root，拒绝 */
+            if (n <= 1) return -1;
+            while (n > 1 && out[n - 1] != '/') n--;
+            if (n > 1) n--;              /* 去掉结尾 /；out[n] 归属下一段或结束 */
             out[n] = 0;
             continue;
         }
         if (k > 0) {
-            size_t need = strlen(out) + 1 + k + 1;
+            size_t need = n + ((n > 1) ? 1 : 0) + (size_t)k + 1;
             if (need >= sizeof out) return -1;
-            if (out[0]) strncat(out, "/", sizeof out - strlen(out) - 1);
-            strncat(out, seg, sizeof out - strlen(out) - 1);
+            if (n > 1) { out[n++] = '/'; out[n] = 0; }
+            memcpy(out + n, seg, (size_t)k);
+            n += (size_t)k;
+            out[n] = 0;
         }
     }
-    /* 空 → root */
-    if (!out[0]) snprintf(out, sizeof out, "%s", TF_ROOT);
-    if (strlen(out) >= buflen) return -1;
-    snprintf(buf, buflen, "%s", out);
+    /* 空/根（n==1，仅 "/"）→ 卡根 */
+    if (n <= 1) snprintf(out, sizeof out, "%s", TF_ROOT);
+    size_t ol = strlen(out);
+    if (ol >= buflen) return -1;
+    memcpy(buf, out, ol + 1);        /* 已证明 ol<buflen，用 memcpy 避免 %s 截断告警 */
     return 0;
 }
 
@@ -921,16 +977,22 @@ static int files_list(int sock, const char *relpath)
 {
     char abs[1024], rel[1024];
     if (normalize_path(relpath, abs, sizeof abs) < 0)
-        return 403;
-    if (!path_in_whitelist(abs)) return 403;
+        return send_err(sock, 403, "FORBIDDEN", "白名单外/路径逃逸");
+    if (!path_in_whitelist(abs))
+        return send_err(sock, 403, "FORBIDDEN", "白名单外/路径逃逸");
     struct stat st;
-    if (stat(abs, &st) < 0) return 404;
-    if (!S_ISDIR(st.st_mode)) return 404;
+    if (stat(abs, &st) < 0)
+        return send_err(sock, 404, "NOT_FOUND", "路径不存在");
+    if (!S_ISDIR(st.st_mode))
+        return send_err(sock, 404, "NOT_FOUND", "非目录");
     DIR *d = opendir(abs);
-    if (!d) return 500;
+    if (!d)
+        return send_err(sock, 500, "INTERNAL", "读目录失败");
     make_rel(abs, rel, sizeof rel);
     sbuf_t s = {0};
-    sA(&s, "{\"root\":\"" TF_ROOT "\",\"path\":");
+    sA(&s, "{\"root\":");
+    sA_str(&s, TF_ROOT);
+    sA(&s, ",\"path\":");
     sA_str(&s, abs);
     sA(&s, ",\"rel\":");
     sA_str(&s, rel);
@@ -962,17 +1024,19 @@ static int files_list(int sock, const char *relpath)
 /* send_json 前置声明 */
 static int send_json(int sock, int status, const char *data);
 
-/* 读文本文件（<1MB），返回 malloc 内容；二进制检测 -2；太大 -3；打不开 -1。 */
+/* 读文本文件（预览上限 TEXT_PREVIEW_MAX，超出截断返回 truncated）：
+ * 返回 malloc 内容（NUL 结尾）；二进制检测 -2；打不开 -1。size=文件真实字节数（非截断后）。 */
 static char *read_text_file_limited(const char *abs, long long *size, int *truncated)
 {
     int fd = open_safe_for_read(abs, 0);
     if (fd < 0) return NULL;
     struct stat st;
-    if (fstat(fd, &st) < 0 || st.st_size > 1024 * 1024) { close(fd); return NULL; }
-    if (st.st_size < 0) { close(fd); return NULL; }
-    char *buf = malloc((size_t)st.st_size + 1);
+    if (fstat(fd, &st) < 0 || st.st_size < 0) { close(fd); return NULL; }
+    long long total = (long long)st.st_size;
+    size_t cap = total > TEXT_PREVIEW_MAX ? (size_t)TEXT_PREVIEW_MAX : (size_t)total;
+    char *buf = malloc(cap + 1);
     if (!buf) { close(fd); return NULL; }
-    ssize_t n = read(fd, buf, (size_t)st.st_size);
+    ssize_t n = read(fd, buf, cap);
     close(fd);
     if (n < 0) { free(buf); return NULL; }
     buf[n] = 0;
@@ -984,8 +1048,8 @@ static char *read_text_file_limited(const char *abs, long long *size, int *trunc
         if (c < 0x09) ctrl++;
     }
     if (ctrl > n / 10) { free(buf); return (char *)-2; }
-    if (size) *size = (long long)n;
-    if (truncated) *truncated = 0;
+    if (size) *size = total;
+    if (truncated) *truncated = (total > (long long)cap) ? 1 : 0;
     return buf;
 }
 
@@ -1286,7 +1350,10 @@ static int read_request(int sock, req_t *r)
     }
     char *body_start = buf + hend + 4;            /* body 实际起点 */
     size_t buffered = (hn > (size_t)(body_start - buf)) ? (hn - (size_t)(body_start - buf)) : 0;
-    if (clen > MAX_HTTP_BODY) { free(buf); return -1; }
+    /* 上传（multipart）走更严上限：14MB 内存约束下不整读超 MAX_UPLOAD_BODY。超限 → -2（413）。 */
+    size_t cap = MAX_HTTP_BODY;
+    if (strncasecmp(r->content_type, "multipart/form-data", 19) == 0) cap = MAX_UPLOAD_BODY;
+    if (clen > cap) { free(buf); return -2; }
     if (clen == 0) { free(buf); r->body = NULL; r->body_len = 0; return 0; }
     char *body = malloc(clen + 1);
     if (!body) { free(buf); return -1; }
@@ -1425,7 +1492,28 @@ static int send_file(int sock, int status, const char *ctype, const char *abspat
  * 解析 body，提取 name=<path> 字段与 name=file 字段（可多个）。写到 target dir（白名单校验）。
  * 返回 0=成功（把写入的 item 用 items_json 回填），负错误码语义同协议。
  */
-typedef struct { char path[1400]; char filename[256]; } upfile_t;
+typedef struct { char path[1400]; char filename[320]; } upfile_t;
+
+/* 安全文件名：取 basename（去目录分隔符），拒绝空/`.`/`..`/含控制字符或分隔符。
+ * 返回 0=ok 写入 out；-1=拒绝。用于防上传文件名逃逸白名单（如 `../../etc/passwd`）。 */
+static int safe_filename(const char *name, char *out, size_t cap)
+{
+    if (!name || !name[0]) return -1;
+    const char *b = name;
+    /* 取最后一个路径分隔符之后（同时兼容 '/' 与 '\\'） */
+    const char *slash = strrchr(b, '/');
+    const char *bsl = strrchr(b, '\\');
+    if (bsl && (!slash || bsl > slash)) slash = bsl;
+    if (slash) b = slash + 1;
+    if (!b[0]) return -1;
+    if (!strcmp(b, ".") || !strcmp(b, "..")) return -1;
+    for (const char *p = b; *p; p++) {
+        unsigned char c = (unsigned char)*p;
+        if (c == '/' || c == '\\' || c < 0x20 || c == 0x7f) return -1;   /* 禁止分隔符/控制字符 */
+    }
+    snprintf(out, cap, "%s", b);
+    return 0;
+}
 
 static int parse_multipart(const req_t *r, upfile_t *files, int maxfiles)
 {
@@ -1469,10 +1557,12 @@ static int parse_multipart(const req_t *r, upfile_t *files, int maxfiles)
             char *l = ln;
             while (*l == '\r' || *l == ' ' || *l == '\t') l++;
             if (strncasecmp(l, "Content-Disposition:", 20) == 0) {
-                char *nm = strstr(l, "name=\"");
-                if (nm) { nm += 6; char *q = strchr(nm, '"'); if (q) { *q = 0; name = nm; } }
+                /* name 与 filename 常同行（name="file"; filename="up.txt"）。
+                 * 先取 filename 再取 name——若先截断 name 收尾引号会把同行的 filename 一并截断。 */
                 char *fn = strstr(l, "filename=\"");
                 if (fn) { fn += 10; char *q = strchr(fn, '"'); if (q) { *q = 0; fname = fn; } }
+                char *nm = strstr(l, "name=\"");
+                if (nm) { nm += 6; char *q = strchr(nm, '"'); if (q) { *q = 0; name = nm; } }
             }
         }
         /* 数据结束：下一个 "--boundary" 之前 */
@@ -1487,18 +1577,25 @@ static int parse_multipart(const req_t *r, upfile_t *files, int maxfiles)
             curpath[dl] = 0;
         } else if (name && !strcmp(name, "file") && fname && nfiles < maxfiles) {
             size_t dl = (size_t)(data_end - data_start);
-            snprintf(files[nfiles].filename, sizeof files[nfiles].filename, "%s", fname);
-            snprintf(files[nfiles].path, sizeof files[nfiles].path, "%s", curpath);
-            /* 写文件 */
-            char abs[1024];
-            if (normalize_path(files[nfiles].path, abs, sizeof abs) < 0 || !path_in_whitelist(abs)) { nfiles++; continue; }
-            snprintf(files[nfiles].path, sizeof files[nfiles].path, "%s/%s", abs, fname);
-            int fd = open(files[nfiles].path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+            char safe[260];
+            if (safe_filename(fname, safe, sizeof safe) < 0) { p = data_end; continue; }   /* 文件名非法：跳过该 part */
+            /* 目标目录规范化 + 白名单校验 */
+            char absdir[1024];
+            if (normalize_path(curpath, absdir, sizeof absdir) < 0 || !path_in_whitelist(absdir)) { p = data_end; continue; }
+            /* 拼绝对路径后再规范化 + 白名单复校（防拼接后残留逃逸） */
+            char joined[1400];
+            snprintf(joined, sizeof joined, "%s/%s", absdir, safe);
+            char abs[1400];
+            if (normalize_path(joined, abs, sizeof abs) < 0 || !path_in_whitelist(abs)) { p = data_end; continue; }
+            snprintf(files[nfiles].filename, sizeof files[nfiles].filename, "%s", safe);
+            snprintf(files[nfiles].path, sizeof files[nfiles].path, "%s", abs);
+            int fd = open(abs, O_WRONLY | O_CREAT | O_TRUNC, 0644);
             if (fd >= 0) {
                 write_full(fd, data_start, dl);
                 close(fd);
+                nfiles++;
             }
-            nfiles++;
+            /* fd<0（不可写）→ 不计数，跳过该文件 */
         }
         p = data_end;
     }
@@ -2065,7 +2162,9 @@ static int api_logs_list(int sock)
     DIR *d = opendir(LOGS_DIR);
     if (!d) return send_err(sock, 404, "NOT_FOUND", "日志目录不存在");
     sbuf_t s = {0};
-    sA(&s, "{\"dir\":\"" LOGS_DIR "\",\"files\":[");
+    sA(&s, "{\"dir\":");
+    sA_str(&s, LOGS_DIR);
+    sA(&s, ",\"files\":[");
     int first = 1;
     struct dirent *e;
     while ((e = readdir(d))) {
@@ -2164,23 +2263,224 @@ static int api_logs_read(int sock, const req_t *r)
     return rc;
 }
 
-/* ---------------- 通知（后端跨进程不可读 → 501） ---------------- */
-/* 注：通知存储为 launcher 进程内存（meow_notif.c g_slots[]，NOTIFICATION_SYSTEM §4），
- * 后端为独立 svcd 子进程，跨进程无法读取/清撤那批内存槽；框架仅在关机前把通知 dump 到
- * TF 卡 MeowOS/notifications/notifications.log（CSV 追加，非活跃快照）。故本后端无法实现
- * 活跃通知列表/清撤 —— 需为通知后端另开 IPC 查询（如 MSG_NOTIFY_LIST 应答）或持久化活跃集,
- * 见 MEOWPANEL_PROTOCOL §6 待定案。当前一律 501。 */
+/* ---------------- 通知（数据源 = TF 卡通知转储日志） ----------------
+ * 数据源优先级（MEOWPANEL_PROTOCOL §3.8 / 任务）：
+ *   1) launcher IPC 查询 —— meow_ipc.h 已定义 MSG_NOTIFY_LIST(0x23)，但 launcher 侧仅作
+ *      守护→App 下发行（util.c:1079「not dispatched here」），**无客户端查询请求类型**，
+ *      后端（svcd 独立进程）无法据此取到活跃清单 → 跳过，回退 ②。详见报告「需 launcher 侧配合项」。
+ *   2) TF 卡通知转储文件 `<卡根>/MeowOS/notifications/notifications.log`：
+ *      launcher 把每条通知归档时追加一行 CSV（meow_notif.c tf_line：CSV 追加 + 10MB 滚动，开机清空）。
+ *      字段顺序：timestamp,id,app_id,app_icon,category,urgency,progress,title,body,target_activity,
+ *      ongoing,media,dismissed（前 6/7/11/12/13 为裸整数，其余引号包裹 + 内部 " 翻倍）。
+ *      注意：**归档发生在置 dismissed=1 之前（meow_notif_dismiss 先 archive_one 后置 dismissed）**，
+ *      故日志的 dismissed 列恒 ≈0（不可靠），且日志是「会话级归档」，非活跃快照。
+ *   3) 都没有 → 明确空态 {items:[],notifications:[],source:"none"}，**不伪造数据**。
+ *   clear（dismiss_all）语义：保留活动中的媒体/进度通知（ongoing||media||progress>=0||category=="media"），
+ *   其余从日志移除。单条删除：按 id 移除该行。 */
+typedef struct {
+    long long ms;             /* created_ms（epoch ms） */
+    unsigned  id;
+    char app_id[40];
+    char app_icon[64];
+    char category[40];
+    int  urgency;
+    int  progress;            /* -1=无 */
+    char summary[96];
+    char body[128];
+    char target[64];
+    int  ongoing, media, dismissed;
+} notif_rec_t;
+
+/* 取一个 CSV 字段（引号包裹 → 解转义；裸字段 → 原样；末后跳过 ','）。返回 0。 */
+static int notif_csv_field(const char **pp, char *out, int outcap)
+{
+    const char *p = *pp;
+    int o = 0;
+    if (*p == '"') {
+        p++;
+        while (*p && *p != '"') {
+            if (*p == '"' && p[1] == '"') {
+                if (o < outcap - 1) out[o++] = '"';
+                p += 2;
+            } else {
+                if (o < outcap - 1) out[o++] = *p;
+                p++;
+            }
+        }
+        if (*p == '"') p++;
+    } else {
+        while (*p && *p != ',' && *p != '\n' && *p != '\r') {
+            if (o < outcap - 1) out[o++] = *p;
+            p++;
+        }
+    }
+    if (o < outcap) { out[o] = 0; }
+    else if (outcap > 0) { out[outcap - 1] = 0; }
+    if (*p == ',') p++;
+    *pp = p;
+    return 0;
+}
+
+static int notif_parse_line(const char *line, notif_rec_t *r)
+{
+    const char *p = line;
+    char f1[32], f2[16], f6[8], f7[16], f11[8], f12[8], f13[8];
+    char app[40], icon[64], cat[40], sum[96], body[128], tgt[64];
+    notif_csv_field(&p, f1, sizeof f1);
+    notif_csv_field(&p, f2, sizeof f2);
+    notif_csv_field(&p, app, sizeof app);
+    notif_csv_field(&p, icon, sizeof icon);
+    notif_csv_field(&p, cat, sizeof cat);
+    notif_csv_field(&p, f6, sizeof f6);
+    notif_csv_field(&p, f7, sizeof f7);
+    notif_csv_field(&p, sum, sizeof sum);
+    notif_csv_field(&p, body, sizeof body);
+    notif_csv_field(&p, tgt, sizeof tgt);
+    notif_csv_field(&p, f11, sizeof f11);
+    notif_csv_field(&p, f12, sizeof f12);
+    notif_csv_field(&p, f13, sizeof f13);
+    r->ms       = strtoll(f1, NULL, 10);
+    r->id       = (unsigned)strtoul(f2, NULL, 10);
+    r->urgency  = atoi(f6);
+    r->progress = atoi(f7);
+    r->ongoing  = atoi(f11);
+    r->media    = atoi(f12);
+    r->dismissed = atoi(f13);
+    snprintf(r->app_id, sizeof r->app_id, "%s", app);
+    snprintf(r->app_icon, sizeof r->app_icon, "%s", icon);
+    snprintf(r->category, sizeof r->category, "%s", cat);
+    snprintf(r->summary, sizeof r->summary, "%s", sum);
+    snprintf(r->body, sizeof r->body, "%s", body);
+    snprintf(r->target, sizeof r->target, "%s", tgt);
+    return 0;
+}
+
+/* 读通知日志，保留最新 maxrec 条（环形缓冲，避免全量进内存）。返回条数；-1=文件不存在/无卡。 */
+static int notif_load_list(notif_rec_t *recs, int maxrec)
+{
+    FILE *f = fopen(g_notif_log, "r");
+    if (!f) return -1;
+    int total = 0, head = 0;
+    char line[1400];
+    notif_rec_t r;
+    while (fgets(line, sizeof line, f)) {
+        if (notif_parse_line(line, &r) != 0) continue;
+        recs[head] = r;
+        head = (head + 1) % maxrec;
+        if (total < maxrec) total++;
+    }
+    fclose(f);
+    if (total < maxrec) return total;              /* 未满窗：recs[0..total-1] 即 oldest..newest */
+    /* 满窗：oldest 在 recs[head]，重排为 oldest..newest 连续 */
+    notif_rec_t tmp[NOTIF_PREVIEW_MAX];
+    for (int i = 0; i < maxrec; i++) tmp[i] = recs[(head + i) % maxrec];
+    memcpy(recs, tmp, (size_t)maxrec * sizeof recs[0]);
+    return total;
+}
+
+/* app_id → 展示名（"system" → "系统"；其余用 app_id 兜底，前端可回退）。 */
+static const char *notif_app_name(const char *app_id)
+{
+    if (!strcmp(app_id, "system")) return "系统";
+    return app_id;
+}
+
+static void notif_emit_item(sbuf_t *out, const notif_rec_t *r)
+{
+    sA(out, "{\"id\":%u,\"app_id\":", r->id);
+    sA_str(out, r->app_id);
+    sA(out, ",\"app_name\":");
+    sA_str(out, notif_app_name(r->app_id));
+    sA(out, ",\"app_icon\":");
+    sA_str(out, r->app_icon);
+    sA(out, ",\"category\":");
+    sA_str(out, r->category);
+    sA(out, ",\"summary\":");
+    sA_str(out, r->summary);
+    sA(out, ",\"body\":");
+    sA_str(out, r->body);
+    sA(out, ",\"urgency\":%d,\"ts\":%lld,\"progress\":", r->urgency, r->ms > 0 ? r->ms / 1000 : 0);
+    if (r->progress >= 0) sA(out, "%d", r->progress); else sA(out, "null");
+    sA(out, ",\"ongoing\":%s,\"media\":%s,\"target_activity\":",
+        r->ongoing ? "true" : "false", r->media ? "true" : "false");
+    sA_str(out, r->target);
+    sA(out, ",\"dismissed\":%s}", r->dismissed ? "true" : "false");
+}
+
 static int api_notifications(int sock)
 {
-    return send_err(sock, 501, "NOT_IMPLEMENTED", "通知存储为 launcher 进程内存，后端跨进程不可读（需通知后端暴露 IPC 查询/清撤）");
+    notif_rec_t recs[NOTIF_PREVIEW_MAX];
+    int n = notif_load_list(recs, NOTIF_PREVIEW_MAX);
+    if (n < 0) return send_json(sock, 200, "{\"count\":0,\"items\":[],\"notifications\":[],\"source\":\"none\"}");
+    sbuf_t arr = {0};
+    int first = 1;
+    for (int i = n - 1; i >= 0; i--) {          /* newest first */
+        if (!first) sA(&arr, ",");
+        first = 0;
+        notif_emit_item(&arr, &recs[i]);
+    }
+    sbuf_t s = {0};
+    sA(&s, "{\"count\":%d,\"source\":\"tf\",\"items\":[", n);
+    if (arr.n) sA_append(&s, arr.b, arr.n);
+    sA(&s, "],\"notifications\":[");
+    if (arr.n) sA_append(&s, arr.b, arr.n);
+    sA(&s, "]}");
+    sbuf_free(&arr);
+    int rc = send_json(sock, 200, s.b ? s.b : "");
+    sbuf_free(&s);
+    return rc;
 }
-static int api_notification_delete(int sock)
+
+/* 重写通知日志。mode=1：保留活动媒体/进度（ongoing||media||progress>=0||category=="media"），
+ * 其余删除（dismiss_all 语义，对应通知中心既定语义）；mode=0：删除指定 id（单条删除）。
+ * 返回删除行数；-1=IO 错；0=无文件（无可删）。写临时文件后 rename（避免与 launcher append 竞写）。 */
+static int notif_rewrite(int mode, unsigned del_id)
 {
-    return send_err(sock, 501, "NOT_IMPLEMENTED", "通知清撤需 launcher 通知后端 IPC，后端未实现");
+    if (!g_notif_log || !g_notif_log[0]) return -1;
+    char tmppath[1400];
+    snprintf(tmppath, sizeof tmppath, "%s.panel.tmp", g_notif_log);
+    FILE *in = fopen(g_notif_log, "r");
+    if (!in) return 0;
+    FILE *out = fopen(tmppath, "w");
+    if (!out) { fclose(in); return -1; }
+    int removed = 0;
+    char line[1400];
+    while (fgets(line, sizeof line, in)) {
+        notif_rec_t r;
+        int parsed = (notif_parse_line(line, &r) == 0);
+        int drop = 0;
+        if (mode == 1) {
+            if (!parsed) drop = 1;
+            else drop = !(r.ongoing || r.media || r.progress >= 0 || !strcmp(r.category, "media"));
+        } else {
+            if (parsed && r.id == del_id) drop = 1;
+        }
+        if (drop) removed++;
+        else fputs(line, out);
+    }
+    fclose(in);
+    if (fclose(out) != 0) return -1;
+    if (rename(tmppath, g_notif_log) < 0) { unlink(tmppath); return -1; }
+    return removed;
 }
+
+static int api_notification_delete(int sock, unsigned id)
+{
+    int removed = notif_rewrite(0, id);
+    if (removed < 0) return send_err(sock, 500, "INTERNAL", "写通知存储失败");
+    if (removed == 0) return send_err(sock, 404, "NOT_FOUND", "通知不存在");
+    char d[64];
+    snprintf(d, sizeof d, "{\"id\":%u,\"dismissed\":true}", id);
+    return send_json(sock, 200, d);
+}
+
 static int api_notification_dismiss_all(int sock)
 {
-    return send_err(sock, 501, "NOT_IMPLEMENTED", "通知清空需 launcher 通知后端 IPC，后端未实现");
+    int removed = notif_rewrite(1, 0);
+    if (removed < 0) return send_err(sock, 500, "INTERNAL", "写通知存储失败");
+    char d[64];
+    snprintf(d, sizeof d, "{\"dismissed\":%d}", removed);
+    return send_json(sock, 200, d);
 }
 
 /* ---------------- 文件操作 ---------------- */
@@ -2208,7 +2508,7 @@ static int api_files_read(int sock, const req_t *r)
     sA_str(&s, abs);
     sA(&s, ",\"content\":");
     sA_str(&s, txt);
-    sA(&s, ",\"size\":%lld,\"truncated\":false}", size);
+    sA(&s, ",\"size\":%lld,\"truncated\":%s}", size, trunc ? "true" : "false");
     free(txt);
     int rc = send_json(sock, 200, s.b ? s.b : "");
     sbuf_free(&s);
@@ -2318,8 +2618,16 @@ static int api_files_rename(int sock, const req_t *r)
     if (strchr(pnn->str, '/')) { jv_free(root); return send_err(sock, 400, "BAD_REQUEST", "new_name 仅文件名"); }
     char abs[1024], newabs[1400];
     if (normalize_path(pj->str, abs, sizeof abs) < 0 || !path_in_whitelist(abs)) { jv_free(root); return send_err(sock, 403, "FORBIDDEN", "白名单外/路径逃逸"); }
-    snprintf(newabs, sizeof newabs, "%s/%s", abs, pnn->str);
-    /* newabs 也须在白名单（new_name 不含 /，父目录已校验，无需再 normalize） */
+    /* 新路径 = 原路径的**父目录** + new_name（new_name 仅文件名，不含分隔符） */
+    char parent[1024];
+    snprintf(parent, sizeof parent, "%s", abs);
+    char *sl = strrchr(parent, '/');
+    if (!sl || sl == parent) { jv_free(root); return send_err(sock, 400, "BAD_REQUEST", "无法重命名根路径"); }
+    *sl = 0;
+    if (!parent[0]) snprintf(parent, sizeof parent, "%s", TF_ROOT);   /* abs 顶层（如 /tmp/mptf/x）→ 父=根 */
+    snprintf(newabs, sizeof newabs, "%s/%s", parent, pnn->str);
+    /* newabs 复校白名单（new_name 无 /，父目录已校验；防御） */
+    if (!path_in_whitelist(newabs)) { jv_free(root); return send_err(sock, 403, "FORBIDDEN", "白名单外/路径逃逸"); }
     if (rename(abs, newabs) < 0) { jv_free(root); return send_err(sock, 500, "INTERNAL", "重命名失败"); }
     sbuf_t s = {0};
     sA(&s, "{\"item\":{\"name\":");
@@ -2557,7 +2865,9 @@ static int api_apps_export(int sock, const char *pkg)
     if (!tf_present()) return send_err(sock, 503, "NO_CARD", "未识别到 TF 卡");
     if (strchr(pkg, '/') || strchr(pkg, ':')) return send_err(sock, 400, "BAD_REQUEST", "包名非法");
     char tmp[1100];
-    mkdir(TF_CARD_DIR "/tmp", 0777);
+    char card_tmp[1200];
+    snprintf(card_tmp, sizeof card_tmp, "%s/tmp", TF_CARD_DIR);
+    mkdir(card_tmp, 0777);
     snprintf(tmp, sizeof tmp, "%s/tmp/%s.mpk", TF_CARD_DIR, pkg);
     unlink(tmp);
     char cmd[1400];
@@ -2668,7 +2978,7 @@ static int handle(int sock, req_t *r)
         if (!strcmp(p, "/api/files/mkdir")) return api_files_mkdir(sock, r);
         if (!strcmp(p, "/api/files/rename")) return api_files_rename(sock, r);
         if (!strcmp(p, "/api/apps/install")) return api_apps_install(sock, r);
-        if (!strcmp(p, "/api/notifications/dismiss_all")) return api_notification_dismiss_all(sock);
+        if (!strcmp(p, "/api/notifications/dismiss_all") || !strcmp(p, "/api/notifications/clear")) return api_notification_dismiss_all(sock);
         if (!strcmp(p, "/api/key")) return api_key_batch(sock, r);
         char seg[256];
         if (path_segment("/api/key/", p, seg, sizeof seg))
@@ -2721,8 +3031,10 @@ static int handle(int sock, req_t *r)
     if (!strcmp(r->method, "GET") && !strcmp(p, "/api/notifications")) return api_notifications(sock);
     if (!strcmp(r->method, "DELETE")) {
         char seg[256];
-        if (path_segment("/api/notifications/", p, seg, sizeof seg))
-            return api_notification_delete(sock);
+        if (path_segment("/api/notifications/", p, seg, sizeof seg)) {
+            unsigned nid = (unsigned)strtoul(seg, NULL, 10);
+            return api_notification_delete(sock, nid);
+        }
     }
 
     return send_err(sock, 404, "NOT_FOUND", "端点不存在");
@@ -2757,7 +3069,12 @@ static void handle_conn(int sock)
 {
     req_t r;
     memset(&r, 0, sizeof r);
-    if (read_request(sock, &r) != 0) { close(sock); return; }
+    int rr = read_request(sock, &r);
+    if (rr != 0) {
+        if (rr == -2) send_err(sock, 413, "PAYLOAD_TOO_LARGE", "请求体过大（超过上传上限）");
+        close(sock);
+        return;
+    }
     handle(sock, &r);
     req_free(&r);
     close(sock);
@@ -2778,6 +3095,7 @@ int main(int argc, char **argv)
             return 0;
         }
     }
+    init_tf_paths();            /* 先定卡根/派生路径（env 可覆盖，宿主测试用） */
     const char *env = getenv("MEOW_IPC_PERF_SOCK");
     if (env && env[0]) g_sock_perf = env;
     env = getenv("MEOW_IPC_POWER_SOCK");