fix(http action): correctly initialize resource state

Fixes https://emqx.atlassian.net/browse/EMQX-13608

Due to incorrect state initialization, a function clause that was supposed to match incoming messages fails, and later, after the message is transformed according to the wrong clauses, it leads to a cryptic function_clause error.

Adding more context:

```
2024-12-02T16:49:15.039945+00:00 [warning] msg: retrying_inflight_sync, where: {emqx_resource_buffer_worker,482,'emqx@127.0.0.1',<0.5531.0>}, query: {query,{fun emqx_rule_runtime:inc_action_metrics/2,[#{action_id => {bridge_v2,http,a},rule_id => <<"rule_zqm3">>}],#{reply_dropped => true}},{<<"action:http:a:connector:http:a">>,#{flags => #{dup => false,retain => false},id => <<"0006284C5426FF2AF4450000175B0169">>,node => 'emqx@127.0.0.1',timestamp => 1733158154731,peername => <<"172.100.239.1:33228">>,metadata => #{rule_id => <<"rule_zqm3">>},event => 'message.publish',username => undefined,payload => <<"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa">>,topic => <<"t/http">>,peerhost => <<"172.100.239.1">>,client_attrs => #{},clientid => <<"caribdis_bench_pub_3720746245_6">>,qos => 0,pub_props => #{'User-Property' => #{}},publish_received_at => 1733158154731}},true,-576460668807281086,undefined}, stk: {current_stacktrace,[{emqx_resource_buffer_worker,retry_inflight_sync,3,[{file,"src/emqx_resource_buffer_worker.erl"},{line,482}]},{gen_statem,loop_state_callback,11,[{file,"gen_statem.erl"},{line,1395}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,241}]}]}
2024-12-02T16:49:15.040025+00:00 [error] tag: ERROR, msg: resource_exception, info: #{error => {error,{invalid_request,#{request => #{flags => #{dup => false,retain => false},id => <<"0006284C5426FEE6F4450000175E0169">>,node => 'emqx@127.0.0.1',timestamp => 1733158154731,peername => <<"172.100.239.1:33254">>,metadata => #{rule_id => <<"rule_zqm3">>},event => 'message.publish',username => undefined,payload => <<"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa">>,topic => <<"t/http">>,peerhost => <<"172.100.239.1">>,client_attrs => #{},clientid => <<"caribdis_bench_pub_3711830288_8">>,qos => 0,pub_props => #{'User-Property' => #{}},publish_received_at => 1733158154731},method => <<"action:http:a:connector:http:a">>,base_path => "/"}}},id => <<"action:http:a:connector:http:a">>,name => call_query,request => {<<"action:http:a:connector:http:a">>,#{flags => #{dup => false,retain => false},id => <<"0006284C5426FEE6F4450000175E0169">>,node => 'emqx@127.0.0.1',timestamp => 1733158154731,peername => <<"172.100.239.1:33254">>,metadata => #{rule_id => <<"rule_zqm3">>},event => 'message.publish',username => undefined,payload => <<"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa">>,topic => <<"t/http">>,peerhost => <<"172.100.239.1">>,client_attrs => #{},clientid => <<"caribdis_bench_pub_3711830288_8">>,qos => 0,pub_props => #{'User-Property' => #{}},publish_received_at => 1733158154731}},stacktrace => [{emqx_bridge_http_connector,formalize_request,3,[{file,"src/emqx_bridge_http_connector.erl"},{line,865}]},{emqx_bridge_http_connector,on_query,3,[{file,"src/emqx_bridge_http_connector.erl"},{line,385}]},{emqx_resource_buffer_worker,apply_query_fun,9,[{file,"src/emqx_resource_buffer_worker.erl"},{line,1412}]},{emqx_resource_buffer_worker,call_query2,8,[{file,"src/emqx_resource_buffer_worker.erl"},{line,1250}]},{emqx_resource_buffer_worker,retry_inflight_sync,3,[{file,"src/emqx_resource_buffer_worker.erl"},{line,483}]},{gen_statem,loop_state_callback,11,[{file,"gen_statem.erl"},{line,1395}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,241}]}]}
```

Cause: lack of `installed_actions` key in connector state returned by on_start, and the
connector restarting amidst ongoing traffic.

apps/emqx_bridge_http/src/emqx_bridge_http.app.src

@@ -1,6 +1,6 @@
 {application, emqx_bridge_http, [
     {description, "EMQX HTTP Bridge and Connector Application"},
-    {vsn, "0.3.5"},
+    {vsn, "0.3.6"},
     {registered, []},
     {applications, [kernel, stdlib, emqx_resource, ehttpc]},
     {env, [

apps/emqx_bridge_http/src/emqx_bridge_http_connector.erl

@@ -236,7 +236,8 @@ on_start(
         port => Port,
         connect_timeout => ConnectTimeout,
         scheme => Scheme,
-        request => preprocess_request(maps:get(request, Config, undefined))
+        request => preprocess_request(maps:get(request, Config, undefined)),
+        installed_actions => #{}
     },
     case start_pool(InstId, PoolOpts) of
         ok ->

changes/ce/fix-14318.en.md

@@ -0,0 +1,7 @@
+Fixed the initialization of the HTTP connector state.  When there was incoming traffic being handled by an HTTP action and its underlying connector restarted, cryptic crashes could be seen in the logs mentioning `function_clause`.
+
+Example:
+
+```
+20:42:36.850 [error] msg: "resource_exception", info: #{error => {error, function_clause}, id => <<"action:http:a:connector:http:a">>, name => call_query, ...
+```