fix(build): a bare "core" in .gitignore ate the core/ source tree

.gitignore

@@ -58,7 +58,11 @@ Desktop.ini
 
 # Debug
 *.dSYM/
-core
+# Core dumps. A bare "core" rule silently ignored the entire core/ source
+# tree, which is why core/common/include/eapps_core.h - included by all 44
+# app targets - was never committed and every app failed to build.
+core.[0-9]*
+vgcore.*
 vgcore.*
 
 # Test artifacts

apps/ebot/ebot.h

@@ -3,5 +3,100 @@
 #pragma once
 #include "lvgl.h"
 #include "eapps_core.h"
+
+/* ------------------------------------------------------------------------
+ * eBot client API
+ *
+ * ebot.c uses this type layer, but the header only ever declared the two
+ * eapps_* lifecycle symbols, so the app has never compiled: 17 identifiers were
+ * undefined. Same failure mode as the missing core/common/include/eapps_core.h.
+ *
+ * Every struct field and its width below is RECOVERED from ebot.c, not invented:
+ *
+ *   host[256]                  strncpy(state->host, ..., 255)          :132
+ *   port          uint16_t     ebot_state_init(..., uint16_t port)     :129
+ *   timeout_ms                 state->timeout_ms = 30000              :134
+ *   connected     bool         state->connected = false               :135
+ *   total_requests/_tokens     (uint32_t)atoi(val)                    :224,226
+ *   models[].name[64]          strncpy(..., 63); name[63] = 0          :246
+ *   models[].tier[16]          strncpy(..., 15); tier[15] = 0          :251
+ *   models[].params[16]        strncpy(..., 15); params[15] = 0        :257
+ *   models[].active   bool     models[i].active ? "* " : "  "     :369,474
+ *   tools[].name[64]           strncpy(..., 63)                        :284
+ *   tools[].description[256]   strncpy(..., 255)                       :289
+ *   tools[].permission[64]     strncpy(..., 63)                        :295
+ *   message.type/text/timestamp                                       :119-122
+ *
+ * The five CAPACITIES are the exception - they are choices, because nothing in
+ * ebot.c pins them. They are marked below. Adjust freely; only EBOT_MAX_MESSAGES
+ * has structural meaning, as the message ring shifts by one at :113-117.
+ * ------------------------------------------------------------------------ */
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define EBOT_VERSION       "2.0.0"          /* matches ebot_info.version */
+#define EBOT_DEFAULT_HOST  "127.0.0.1"      /* local eAI Ebot Server */
+#define EBOT_DEFAULT_PORT  8080
+
+/* Capacities - chosen, not recovered from ebot.c. */
+#define EBOT_MAX_MESSAGES  64
+#define EBOT_MAX_MSG_LEN   2048
+#define EBOT_MAX_MODELS    32
+#define EBOT_MAX_TOOLS     32
+#define EBOT_RESPONSE_BUF  8192
+
+typedef enum {
+    EBOT_MSG_USER = 0,
+    EBOT_MSG_BOT,
+    EBOT_MSG_SYSTEM,
+    EBOT_MSG_TOOL_CALL,
+    EBOT_MSG_ERROR,
+} ebot_msg_type_t;
+
+typedef struct {
+    ebot_msg_type_t type;
+    char            text[EBOT_MAX_MSG_LEN];
+    uint32_t        timestamp;              /**< Unix seconds. */
+} ebot_message_t;
+
+typedef struct {
+    char name[64];
+    char tier[16];
+    char params[16];
+    bool active;        /**< Marked "* " in the model list at :369, :474. */
+} ebot_model_t;
+
+typedef struct {
+    char name[64];
+    char description[256];
+    char permission[64];
+} ebot_tool_t;
+
+typedef struct {
+    char           host[256];
+    uint16_t       port;
+    uint32_t       timeout_ms;
+    bool           connected;
+    uint32_t       total_requests;
+    uint32_t       total_tokens;
+
+    ebot_message_t messages[EBOT_MAX_MESSAGES];
+    int            msg_count;
+    ebot_model_t   models[EBOT_MAX_MODELS];
+    int            model_count;
+    ebot_tool_t    tools[EBOT_MAX_TOOLS];
+    int            tool_count;
+} ebot_state_t;
+
+int ebot_state_init(ebot_state_t *state, const char *host, uint16_t port);
+int ebot_send_message(ebot_state_t *state, const char *message);
+int ebot_complete(ebot_state_t *state, const char *prompt);
+int ebot_fetch_status(ebot_state_t *state);
+int ebot_fetch_models(ebot_state_t *state);
+int ebot_fetch_tools(ebot_state_t *state);
+int ebot_reset_session(ebot_state_t *state);
+int ebot_cli_main(int argc, char **argv);
+
 extern const eapps_app_info_t ebot_info;
 extern const eapps_app_lifecycle_t ebot_lifecycle;

apps/eremote/eremote.c

@@ -135,7 +135,7 @@ static void refresh_labels(void)
     }
     if (s_temp_lbl) {
         char buf[16];
-        snprintf(buf, sizeof(buf), "%d" LV_SYMBOL_DEGREE_SIGN "C", dev->temperature);
+        snprintf(buf, sizeof(buf), "%d C", dev->temperature);
         lv_label_set_text(s_temp_lbl, buf);
     }
     if (s_power_btn) {
@@ -557,7 +557,7 @@ static void build_ac_controls(lv_obj_t *parent, uint32_t btn_bg, uint32_t btn_fg
     make_icon_btn(row, "-", 48, 44, btn_bg, btn_fg, temp_down_cb, NULL);
 
     s_temp_lbl = lv_label_create(row);
-    lv_label_set_text(s_temp_lbl, "24" LV_SYMBOL_DEGREE_SIGN "C");
+    lv_label_set_text(s_temp_lbl, "24 C");
     lv_obj_set_style_text_color(s_temp_lbl, hc(p->on_surface), 0);
     lv_obj_set_style_text_font(s_temp_lbl, &lv_font_montserrat_16, 0);
     lv_obj_set_style_min_width(s_temp_lbl, 72, 0);
@@ -742,33 +742,24 @@ static bool eremote_init(lv_obj_t *parent)
     /* Bottom navigation */
     build_nav_bar(body);
 
-typedef struct {
-    lv_obj_t *lbl_title;
-    lv_obj_t *lbl_status;
-    lv_timer_t *timer;
-} eremote_ctx_t;
-static eremote_ctx_t ctx;
-static bool eremote_init(lv_obj_t *parent) {
-    ctx.lbl_title = lv_label_create(parent);
-    lv_obj_set_style_text_font(ctx.lbl_title, &lv_font_montserrat_24, 0);
-    lv_obj_align(ctx.lbl_title, LV_ALIGN_TOP_MID, 0, 16);
-    lv_label_set_text(ctx.lbl_title, "eRemote");
-    ctx.lbl_status = lv_label_create(parent);
-    lv_obj_align(ctx.lbl_status, LV_ALIGN_CENTER, 0, 0);
-    lv_label_set_text(ctx.lbl_status, "Remote desktop client\nv2.0.0 — Ready");
-    lv_obj_t *btn = lv_btn_create(parent);
-    lv_obj_align(btn, LV_ALIGN_BOTTOM_MID, 0, -16);
-    lv_obj_t *lbl = lv_label_create(btn);
-    lv_label_set_text(lbl, "Open");
-    ctx.timer = NULL;
     return true;
 }
+
+/* The remainder of this file was a second, unrelated stub implementation
+ * pasted over the tail of eremote_init(): its own eremote_ctx_t, a
+ * placeholder init drawing three labels and a button, and a duplicate
+ * eremote_init symbol. The real init above had lost its `return true; }` to
+ * that paste. Restored here, and the duplicate init and ctx removed. The
+ * lifecycle block below is kept: the real implementation defined none of it.
+ */
+
 static void eremote_deinit(void) { }
 static void eremote_on_show(void) { }
 static void eremote_on_hide(void) { }
 const eapps_app_info_t eremote_info = {
     .id = "eremote", .name = "eRemote", .icon = "rmt",
-    .description = "Remote desktop client", .category = EAPPS_CAT_NETWORK, .version = "2.0.0",
+    .description = "IR/WiFi remote for TVs, soundbars, streamers and AC",
+    .category = EAPPS_CAT_CONNECTIVITY, .version = "2.0.0",
 };
 const eapps_app_lifecycle_t eremote_lifecycle = {
     .init = eremote_init, .deinit = eremote_deinit,

apps/eremote/eremote.h

@@ -29,6 +29,7 @@
 /* ---- Capacity limits ---------------------------------------------------- */
 
 #define EREMOTE_IR_DB_SIZE   16   /**< Code-database rows; init() fills 6.   */
+#define MAX_DEVICES          16   /**< Configured devices; init() fills 2.   */
 #define MAX_LEARNED          16   /**< Learned codes retained per device.    */
 #define MAX_SCENES            8   /**< Scene slots; init() fills 3.          */
 #define MAX_SCHEDULES         8   /**< Schedule slots; init() fills 2.       */
@@ -121,6 +122,13 @@ typedef struct {
     bool                  two_way;   /**< Transport reports device state. */
     eremote_ir_code_t     learned[MAX_LEARNED];
     int                   learned_count;
+    /* Last known device state. Only meaningful when two_way is set; for
+     * send-only transports these track what we last commanded. */
+    bool                  power_on;
+    uint8_t               volume;      /**< 0-100. */
+    uint16_t              channel;     /**< 1-based; 0 means unknown. */
+    int8_t                temperature; /**< Degrees C; AC devices only. */
+    uint8_t               fan_speed;   /**< 0 = auto; AC devices only. */
 } eremote_device_t;
 
 /** One row of the shipped code database. */

apps/etrack/etrack.c

@@ -24,7 +24,7 @@ static lv_obj_t*s_root=NULL;static lv_obj_t*s_vw=NULL;static item_t s_items[MAX_
 static lv_obj_t*s_nta=NULL;static lv_obj_t*s_lta=NULL;static lv_obj_t*s_dlbl=NULL;
 
 static const char*cn(car_t c){switch(c){case C_FEDEX:return "FedEx";case C_UPS:return "UPS";case C_DHL:return "DHL";case C_AMZ:return "Amazon";default:return "Other";}}
-static const char*ci(car_t c){switch(c){case C_FEDEX:return LV_SYMBOL_TRASH;case C_UPS:return LV_SYMBOL_HOME;case C_DHL:return LV_SYMBOL_CHARGE;case C_AMZ:return LV_SYMBOL_SHOPPING_CART;default:return LV_SYMBOL_GPS;}}
+static const char*ci(car_t c){switch(c){case C_FEDEX:return LV_SYMBOL_TRASH;case C_UPS:return LV_SYMBOL_HOME;case C_DHL:return LV_SYMBOL_CHARGE;case C_AMZ:return LV_SYMBOL_LIST;   /* LVGL has no cart symbol */default:return LV_SYMBOL_GPS;}}
 static const char*se(st_t s){switch(s){case S_PEND:return "Pending";case S_IN:return "In Transit";case S_OUT:return "Out for Delivery";case S_DELV:return "Delivered";default:return "Failed";}}
 static const char*sl(st_t s){switch(s){case S_PEND:return "🕓";case S_IN:return "🚚";case S_OUT:return "🏠";case S_DELV:return "✅";default:return "❌";}}
 static uint32_t sc(st_t s){switch(s){case S_PEND:return 0xFFB300;case S_IN:return 0x1E88E5;case S_OUT:return 0x8E24AA;case S_DELV:return 0x43A047;default:return 0xE53935;}}
@@ -83,38 +83,8 @@ static bool etrack_init(lv_obj_t*par){s_root=par;load();show_list();return true;
 static void etrack_deinit(void){s_root=NULL;clr();}
 const eapps_app_info_t etrack_info={.id="etrack",.name="eTrack",.icon=LV_SYMBOL_GPS,.category=EAPPS_CAT_CONNECTIVITY,.version="1.0.0"};
 const eapps_app_lifecycle_t etrack_lifecycle={.init=etrack_init,.deinit=etrack_deinit};
-// eTrack — EoS LVGL Application
-#include "etrack.h"
-#include <stdbool.h>
-typedef struct {
-    lv_obj_t *lbl_title;
-    lv_obj_t *lbl_status;
-    lv_timer_t *timer;
-} etrack_ctx_t;
-static etrack_ctx_t ctx;
-static bool etrack_init(lv_obj_t *parent) {
-    ctx.lbl_title = lv_label_create(parent);
-    lv_obj_set_style_text_font(ctx.lbl_title, &lv_font_montserrat_24, 0);
-    lv_obj_align(ctx.lbl_title, LV_ALIGN_TOP_MID, 0, 16);
-    lv_label_set_text(ctx.lbl_title, "eTrack");
-    ctx.lbl_status = lv_label_create(parent);
-    lv_obj_align(ctx.lbl_status, LV_ALIGN_CENTER, 0, 0);
-    lv_label_set_text(ctx.lbl_status, "Task and time tracker\nv2.0.0 — Ready");
-    lv_obj_t *btn = lv_btn_create(parent);
-    lv_obj_align(btn, LV_ALIGN_BOTTOM_MID, 0, -16);
-    lv_obj_t *lbl = lv_label_create(btn);
-    lv_label_set_text(lbl, "Open");
-    ctx.timer = NULL;
-    return true;
-}
-static void etrack_deinit(void) { }
-static void etrack_on_show(void) { }
-static void etrack_on_hide(void) { }
-const eapps_app_info_t etrack_info = {
-    .id = "etrack", .name = "eTrack", .icon = "trk",
-    .description = "Task and time tracker", .category = EAPPS_CAT_PRODUCTIVITY, .version = "2.0.0",
-};
-const eapps_app_lifecycle_t etrack_lifecycle = {
-    .init = etrack_init, .deinit = etrack_deinit,
-    .on_show = etrack_on_show, .on_hide = etrack_on_hide,
-};
+
+/* A second, unrelated stub implementation was appended below this point -
+ * its own #include, etrack_ctx_t, and duplicate etrack_init/deinit/info/
+ * lifecycle symbols. The implementation above is complete, so the stub was
+ * removed rather than merged. */

apps/ewifi/ewifi.c

@@ -39,7 +39,7 @@ static uint32_t signal_color(int rssi) {
     return 0xF44336;
 }
 
-static uint32_t risk_color(ewifi_risk_level_t r) {
+static uint32_t risk_color(ewifi_risk_t r) {
     switch (r) {
     case EWIFI_RISK_SECURE:  return 0x00E676;
     case EWIFI_RISK_LOW:     return 0x66BB6A;
@@ -534,10 +534,14 @@ static void build_passwords_tab(lv_obj_t *body) {
         lv_obj_set_style_text_font(pass, &lv_font_montserrat_12, 0);
 
         /* Security info */
-        if (strlen(creds[i].security) > 0) {
+        /* .security is an ewifi_security_t enum, not a string: strlen() and
+         * "%s" on it were a pointer-from-integer error. ewifi_security_str()
+         * is the accessor, used correctly at line 147. */
+        const char *sec_str = ewifi_security_str(creds[i].security);
+        if (sec_str && *sec_str) {
             lv_obj_t *sec = lv_label_create(card);
             char stxt[48];
-            snprintf(stxt, 48, "Cipher: %s", creds[i].security);
+            snprintf(stxt, 48, "Cipher: %s", sec_str);
             lv_label_set_text(sec, stxt);
             lv_obj_set_style_text_color(sec, hc(p->on_surface), 0);
             lv_obj_set_style_text_opa(sec, LV_OPA_50, 0);
@@ -794,7 +798,24 @@ static void build_nav(lv_obj_t *parent) {
     }
 }
 
-/* ---- Lifecycle ---- */
+/* ---- Lifecycle ----
+ *
+ * NOTE: this block was appended as a placeholder and its ewifi_ctx_t / ctx
+ * definition was lost, leaving `ctx` undeclared. The struct is restored below
+ * from its uses so the app builds.
+ *
+ * It is still a PLACEHOLDER: it draws a title, a status line and a button, and
+ * never calls the real UI in this file - build_scan_tab(), build_channel_tab(),
+ * build_security_tab(), build_passwords_tab(), build_nav(). Wiring the lifecycle
+ * to those is a product decision about tab scaffolding, not a build fix, so it
+ * is left for the owner. */
+typedef struct {
+    lv_obj_t   *lbl_title;
+    lv_obj_t   *lbl_status;
+    lv_timer_t *timer;
+} ewifi_ctx_t;
+static ewifi_ctx_t ctx;
+
 static bool ewifi_init(lv_obj_t *parent) {
     ctx.lbl_title = lv_label_create(parent);
     lv_obj_set_style_text_font(ctx.lbl_title, &lv_font_montserrat_24, 0);

core/common/include/eapps_core.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT
+ * Copyright (c) 2026 EoS Project
+ *
+ * eapps_core.h - umbrella header for eApps application modules.
+ *
+ * 46 files under apps/ include "eapps_core.h", but the header was never
+ * committed - it appears in no commit in this repository's history. Every app
+ * target added by the root CMakeLists.txt therefore failed to compile:
+ *
+ *   apps/ecal/ecal.h:5:10: fatal error: eapps_core.h: No such file or directory
+ *
+ * Nothing here is invented. Each declaration the apps rely on already existed in
+ * a per-module header; this file only aggregates them, so the contract is
+ * whatever those headers say:
+ *
+ *   eapps_app_info_t, eapps_app_lifecycle_t   <- eapps/types.h
+ *   eapps_registry_*                          <- eapps/registry.h
+ *   eapps_scaffold_create, eapps_card_create,
+ *   eapps_list_create, eapps_list_item_create  <- eapps/widgets.h
+ *   eapps_palette_t, eapps_theme_get_palette   <- eapps/theme.h
+ *
+ * Apps that additionally use the canvas, game-engine, TV-layout, or the string,
+ * math, date, and expression utilities should include those headers directly
+ * rather than have this one pull in the whole tree.
+ */
+
+#ifndef EAPPS_CORE_H
+#define EAPPS_CORE_H
+
+#include "eapps/types.h"
+#include "eapps/registry.h"
+#include "eapps/theme.h"
+#include "eapps/widgets.h"
+
+#endif /* EAPPS_CORE_H */

extern/lv_conf.h

@@ -27,6 +27,8 @@ extern uint32_t eapps_tick_get_ms(void);
 #define LV_USE_ASSERT_MEM_INTEGRITY 0
 #define LV_USE_ASSERT_OBJ           0
 
+/* 12 is used by apps/etrack and apps/ewifi; without it they fail to build. */
+#define LV_FONT_MONTSERRAT_12   1
 #define LV_FONT_MONTSERRAT_14   1
 #define LV_FONT_MONTSERRAT_16   1
 #define LV_FONT_MONTSERRAT_20   1